JUVENILE DELINQUENCY: IS MAJORITY FOR MATURITY STILL A MYTH?

ABSTRACT

When a young person breaks the law, the question that should follow is not merely what punishment fits the act, but whether the actor truly understood what he or she was doing. Juvenile delinquency sits uncomfortably at the crossroads of criminal law, the science of human development, and social policy choices that carry deep consequences for real children. Nearly every legal system in the world draws a hard line at the age of eighteen, treating that birthday as the moment full criminal accountability kicks in. Yet that assumption is under serious challenge from brain science, which tells us that adolescent minds continue developing well into a person’s mid-twenties. This article interrogates that tension. It traces how the ideas of majority and maturity have evolved in Indian law and in comparable legal systems around the world, and examines how the Juvenile Justice (Care and Protection of Children) Act, 2015 defines a young person in conflict with the law and where that definition comes from. It also draws on neuroscience and developmental psychology to map the cognitive limits of adolescence, surveys the social and structural factors that push young people toward offending, and offers a global and Indian historical account of juvenile justice.

Keywords: Juvenile delinquency, age of majority, maturity myth, JJ Act 2015, doli incapax, adolescent brain, rehabilitation, UNCRC, India, comparative juvenile justice psychological brain, teenage, UN , Maturity .

“There is no trust more sacred than the one the world holds with children. There is no duty more important than ensuring that their rights are respected, that their welfare is protected, that their lives are free from fear and want and that they can grow up in peace”.

I.  INTRODUCTION

At its heart, criminal law rests on a moral bargain: a person can only be punished if they had the mental ability to choose differently. The ancient Latin maxim actus non facit reum nisi mens sit rea — meaning that no act becomes a crime without a guilty mind — captures this principle with precision. Childhood has always occupied an exception to that rule, because young people are still building the mental tools that would make genuine moral choice possible.¹

Recognising this developmental reality, legal systems across the globe have put in place separate frameworks for dealing with young offenders — regimes founded on the idea that their culpability is reduced and their capacity for change is heightened. Paradoxically, recent legislative changes in several countries, including India’s own Juvenile Justice (Care and Protection of Children) Act, 2015 (JJ Act 2015), have actually moved in the opposite direction, opening the door for older adolescents charged with serious crimes to face adult prosecution. Whether that shift can be justified scientifically or legally is the central question this article seeks to answer.²

II.  CONCEPTUAL FRAMEWORK

A.  Age of Majority in India: Criminal and Other Laws

India does not operate with a single, consistent age of majority across every area of the law. Under the Age of Majority Act, 1875, the general threshold for matters such as contractual capacity and guardianship is set at eighteen years. The Indian Penal Code, 1860 (IPC) takes a stepped approach within the domain of criminal law: Section 82 gives children below seven years a complete shield from criminal liability, based on the absolute legal presumption that they simply cannot understand the nature of wrongdoing (doli incapax). Section 83 offers children aged seven to twelve a partial, rebuttable defence based on their capacity to understand consequences. Once a child passes twelve, the IPC falls silent on the matter, leaving juvenile justice legislation to fill the gap.³

A look across other Indian statutes reveals an even wider scatter of age boundaries: the Protection of Children from Sexual Offences Act, 2012 (POCSO) shields every person below eighteen; the Prohibition of Child Marriage Act, 2006 sets the minimum age for marriage at eighteen for women and twenty-one for men; the Motor Vehicles Act, 1988 requires eighteen years before a person may hold a driving licence; and the Representation of the People Act, 1950 pegs the voting age at eighteen. What emerges from this mosaic is an implicit legislative admission that different abilities ripen at different rates — an insight that the single chronological cut-off used in criminal law conspicuously refuses to adopt.

B.  Juvenile Delinquency: Definition, Latin Origins, and Statutory Reformulation

The term juvenile delinquency has its roots in two Latin words: juvenis (meaning a young person) and delinquere (meaning to fail in one’s duty or to transgress). The phrase entered English legal writing in the reform literature of the nineteenth century as a label for criminal or antisocial behaviour by persons below the age of adult accountability. It carried with it an unmistakable stigma, casting the young offender as a specimen of social deviance rather than a person in need of guidance.

Present-day Indian law has made a conscious break from that older terminology. In place of the morally loaded phrase, the JJ Act 2015 introduced the child-centric expression “child in conflict with the law,” defined under Section 2(13) as any child alleged or found to have committed an offence who had not yet turned eighteen years of age on the date of the alleged offence.⁴ This deliberate shift in language signals a policy choice to see the young person who has committed an offence through the lens of developmental vulnerability rather than through the lens of moral failure — a commitment that the Act’s own adult trial provisions then partly contradict.

III.  NEUROSCIENTIFIC AND PSYCHOLOGICAL PERSPECTIVES

Brain imaging studies have shown with reasonable consistency that the prefrontal cortex — the part of the brain responsible for controlling impulses, weighing risks, thinking ahead, and resisting social pressure — does not finish maturing until a person’s mid-twenties.⁵ Two biological processes explain this drawn-out timeline: synaptic pruning, which clears away unnecessary neural pathways, and myelination, which progressively wraps nerve fibres in an insulating sheath to make them faster and more reliable. Both continue well past the age of eighteen.

During adolescence, the limbic system — the part of the brain tied to emotions and the desire for reward — matures ahead of the prefrontal regulatory system. Developmental researchers have described this as producing a period where young people are unusually responsive to emotional cues and social pressures without yet having fully functioning internal brakes in place.⁶ The practical outcomes of this imbalance — acting without thinking, caving to peer pressure, and failing to think about long-term consequences — are precisely the kinds of behaviour most commonly linked to young people coming into conflict with the law.

The United States Supreme Court has translated this body of scientific knowledge directly into constitutional principles through three landmark decisions: Roper v. Simmons⁷ (striking down the death penalty for juvenile offenders), Graham v. Florida⁸ (banning life without parole for juveniles in non-homicide cases), and Miller v. Alabama⁹ (ruling out mandatory life-without-parole sentences for juveniles convicted of homicide). All three rulings shared a common foundation: the constitutional acknowledgment that young people are biologically and developmentally different from adults, carry lesser moral responsibility, and are more capable of genuine change.

IV.  CAUSES OF JUVENILE DELINQUENCY: A MULTI-FACTOR ANALYSIS

• Individual and Psychological Factors

Looking at the individual child, several internal risk factors stand out: poor impulse control, diagnoses such as ADHD or conduct disorder, exposure to trauma at a young age, early substance use, and underdeveloped empathy or moral reasoning. Children who have lived through physical, emotional, or sexual abuse are far more likely to end up engaging in delinquent behaviour — a pattern that scholars often call the ‘cycle of violence.’ When substance misuse begins early in life, it compounds the already-incomplete regulatory capacity of the adolescent brain, making it even harder for young people to control their conduct.

• Family and Attachment Factors

Within the family environment, a range of circumstances predict whether a child is likely to fall into delinquency. Parental involvement in crime, domestic violence in the home, neglect, inconsistent or harsh discipline, and substance misuse by caregivers are among the most reliably observed warning signs. John Bowlby’s work on attachment theory helps explain the mechanism: where early bonding between a child and parent is insecure — often a product of neglect or abuse — the child grows up with damaged internal models of trust and self-worth, and is more likely to display antisocial behaviour later in life.

• Peer and Social Learning Factors

Edwin Sutherland’s differential association theory offers a sociological lens: it holds that delinquent behaviour is essentially something that gets learned through close contact with others who are already engaged in it. This dynamic is especially powerful during adolescence, when belonging to a peer group matters enormously. Gang membership, having criminal figures as role models, and involvement in online spaces that normalise lawbreaking all function as immediate risk factors that push young people toward offending.

• Educational and Institutional Factors

Struggling or dropping out of school — whether because of learning difficulties, bullying, or a simple sense of not belonging — is one of the stronger predictors of delinquent behaviour. Researchers in the United States have documented what they call the ‘school-to-prison pipeline’: a pattern where punitive school disciplinary policies effectively steer academically disengaged students out of education and into contact with the criminal justice system. This phenomenon is becoming increasingly recognisable in the Indian context as well.

• Socio-Economic and Environmental Factors

Shaw and McKay’s social disorganisation theory established decades ago that neighbourhood-level conditions — concentrated poverty, high residential turnover, and the breakdown of community bonds — are predictors of juvenile crime in their own right, independently of any individual child’s personal circumstances. In India, crime data from the National Crime Records Bureau consistently points in the same direction: the great majority of young people who come before juvenile justice authorities come from economically marginalised, educationally deprived household backgrounds.

• Digital and Media Influences

The digital era has introduced a fresh category of risk factors that were absent from earlier generations of juvenile justice scholarship. Young people’s exposure to violent online content, cyberbullying, radicalisation through digital platforms, and the steady normalisation of dangerous behaviour on social media all carry growing significance. The reward-driven design of social media algorithms fits uncomfortably well with the reward-hungry adolescent brain, creating patterns of compulsive engagement that can gradually draw young people into and normalise delinquent attitudes and actions.

V.  HISTORY OF JUVENILE JUSTICE: GLOBAL AND INDIAN PERSPECTIVES

A.  USA, UK, Canada, and the UN Framework

Prior to the reforming movements of the nineteenth century, children who crossed the minimal doli incapax threshold were brought before adult courts, locked up alongside adult criminals, and in some cases put to death. Progressive reformers in the United States changed this by creating the world’s first court dedicated to young offenders in Cook County, Illinois in 1899, grounded in the parens patriae doctrine and a philosophy of reform rather than punishment.¹³ England followed suit with the Children Act 1908, while Scotland went further and built its own welfare-based hearing model under the Social Work (Scotland) Act 1968. Canada traced an evolutionary arc of its own, moving from the Juvenile Delinquents Act 1908 through the Young Offenders Act 1982 to the current Youth Criminal Justice Act 2003, which requires that informal, non-court measures be fully exhausted before any formal prosecution is pursued.¹⁴

At the international level, the UN Standard Minimum Rules for the Administration of Juvenile Justice, adopted in 1985 and known as the Beijing Rules, gave formal expression to the principles of proportionality, minimal intervention, and a preference for diversion over formal prosecution.¹⁵ The UN Convention on the Rights of the Child, adopted in 1989, elevated those principles to the level of binding international obligations, compelling signatory states to treat detention as an absolute last resort and to make rehabilitation and reintegration their primary objectives.¹⁶ India ratified the UNCRC in 1992.

B.  Evolution of Juvenile Justice in India

India’s legislative journey in this area stretches back to the Apprentices Act, 1850, which redirected young offenders into trades, and the Indian Reformatory Schools Act, 1897, which provided institutional care. After independence, the Children Act, 1960 built a framework for Union Territories, and the Juvenile Justice Act, 1986 extended coverage nationwide — though it attracted well-founded criticism for applying different age limits to boys (sixteen) and girls (eighteen). The Juvenile Justice (Care and Protection of Children) Act, 2000 corrected that inconsistency by fixing a uniform threshold of eighteen for all children and embedding a thoroughgoing philosophy of rehabilitation. The Supreme Court clarified in Pratap Singh v. State of Jharkhand¹⁷ that for the purpose of determining whether a person qualifies as a juvenile, the relevant date is the date on which the alleged offence was committed.

C.  The JJ Act 2015: Key Provisions and Controversies

The JJ Act 2015 was enacted against a backdrop of widespread public anger in the wake of the 2012 Nirbhaya gang rape case. Section 15 of the Act empowered the Juvenile Justice Board to conduct a preliminary assessment of children between sixteen and eighteen years who are accused of heinous offences — defined as offences carrying a minimum sentence of seven years — to determine whether they should be sent for trial before a Children’s Court as adults. The Supreme Court later addressed the definitional ambiguity this created in Shilpa Mittal v. State of NCT of Delhi,¹⁸ ruling that offences for which the law prescribes no minimum sentence cannot be classified as heinous. The adult trial mechanism has been the subject of sustained scholarly and judicial criticism: the ‘preliminary assessment’ it envisions is essentially a quasi-judicial process rather than a proper clinical evaluation of the child’s developmental stage, and its underlying assumption — that the gravity of the alleged offence itself reveals the maturity of the offender — finds no support in any credible body of developmental research.

VI.  MAJORITY = MATURITY? A CRITICAL EVALUATION

Any claim that reaching the age of legal majority is the same thing as reaching psychological maturity simply cannot hold up when tested against the evidence. At the neurological level, scientific research consistently shows that the prefrontal cortex keeps developing well beyond eighteen — no neuroscientist has ever identified the eighteenth birthday as a genuine milestone in brain development. What the law treats as the point at which adult cognitive capacity arrives is, from a developmental standpoint, no more than an arbitrary moment in the middle of a much longer process of maturation. Moreover, the pace at which any individual matures depends on a complex mix of genetic factors, the quality of early relationships, educational opportunities, and the degree to which a person has been exposed to adverse or traumatic experiences — none of which can be captured by a simple chronological cut-off.

The argument that exposing older adolescents to adult prosecution will act as a deterrent against serious juvenile offending is also not supported by what the research actually shows. American studies that have tracked outcomes for young people transferred to adult courts consistently find that those individuals reoffend at higher rates than comparable young people who remained within the juvenile system.¹⁹ Housing young people in adult correctional facilities deepens their socialisation into criminal culture, cuts them off from family and community support, and shuts the door on educational progression — all conditions that entrench rather than break delinquent patterns of behaviour. Using administrative convenience as a justification for a policy that ignores developmental realities is not justice; it is an injustice dressed up in the language of practicality.

VII.  REHABILITATIVE OR PUNITIVE: AN EVIDENCE-BASED ASSESSMENT

Deciding between a rehabilitative and a punitive orientation in juvenile justice is ultimately a decision about what criminal justice is for, and about the depth of criminal responsibility that it is realistic to expect from a developing mind. The rehabilitative tradition — which has historically been the dominant philosophy in juvenile justice — holds that when the state intervenes in the life of a young offender, its primary task should be to understand and address the developmental, psychological, and social roots of the offending, and to support the young person in re-joining society as a constructive member. The punitive school, by contrast, insists that the severity of the harm caused must be matched by a commensurate consequence, regardless of how old or developmentally incomplete the offender may be.

The weight of empirical evidence comes down firmly and consistently on the side of rehabilitation. Restorative justice approaches — which bring together the victim and offender for mediation, involve the wider family in conferencing, and engage the community through service — have been shown by systematic reviews to produce meaningfully higher rates of victim satisfaction, offender compliance with agreements, and reduced reoffending when compared to conventional adversarial prosecution. The Scandinavian model, which routes young offenders through child welfare institutions rather than criminal courts, deploys custody only as a genuine measure of last resort, and invests substantially in community-based support, consistently records some of the world’s lowest rates of juvenile reoffending.

India’s rehabilitative infrastructure under the JJ Act 2015 is patchy and uneven in its implementation. Observation homes are chronically overcrowded; trained psychologists and qualified social workers are in short supply; and educational and vocational programmes are delivered inconsistently across facilities. The statutory framework for rehabilitation has been put in place. What is lacking is its operational delivery on the ground. The reform energy of the state must be directed toward making that framework work in practice — not toward widening the gateway to adult prosecution of young people.

VIII.  CONCLUSION

What this article has sought to show, drawing on insights from neuroscience, developmental psychology, comparative legal systems, and criminological research, is that treating the age of legal majority as though it were the same thing as psychological maturity is a fundamentally flawed assumption — and one that carries real consequences for real young people. While eighteen is a workable administrative line for legal purposes, it does not reliably mark the point at which a person has acquired full cognitive or moral agency. The Juvenile Justice (Care and Protection of Children) Act, 2015 represents a significant departure from the rehabilitative tradition that had defined India’s approach to juvenile justice, tilting instead toward a punitive framework that appears to have been driven more by the pressure of public sentiment than by any grounding in developmental research.

A juvenile justice system that is both fair and effective needs to be built on three foundational commitments: a genuine acknowledgment that adolescence is a distinct developmental stage with its own cognitive limitations, a firm prioritisation of rehabilitation over punishment, and sustained investment in addressing the social, economic, and educational conditions that create the conditions for delinquency in the first place. In this framework, reaching the age of legal majority may mark the formal beginning of adult accountability — but it does not, by itself, guarantee the level of psychological maturity that such accountability truly demands.

FOOTNOTE(S):

1. Actus non facit reum nisi mens sit rea — traceable to Coke’s Institutes of the Laws of England (1628). See also Indian Penal Code, No. 45 of 1860, § 83 (India).

2. Juvenile Justice (Care and Protection of Children) Act, No. 2 of 2016, § 15 (India) [hereinafter JJ Act 2015].

3. Age of Majority Act, No. 9 of 1875 (India); Indian Penal Code §§ 82–83; Protection of Children from Sexual Offences Act, No. 32 of 2012, § 2(d) (India); Motor Vehicles Act, No. 59 of 1988, § 4 (India).

4. JJ Act 2015, § 2(13).

5. Sarah-Jayne Blakemore & Suparna Choudhury, Development of the Adolescent Brain: Implications for Executive Function and Social Cognition, 47 J. Child Psychol. & Psychiatry 296, 298 (2006).

6. Laurence Steinberg, Adolescent Development and Juvenile Justice, 5 Ann. Rev. Clinical Psychol. 459, 463 (2009).

7. Roper v. Simmons, 543 U.S. 551, 569–70 (2005).

8. Graham v. Florida, 560 U.S. 48, 68–69 (2010).

9. Miller v. Alabama, 567 U.S. 460, 471–73 (2012).

10. John Bowlby, Attachment and Loss: Vol. 1. Attachment 177 (2d ed. 1982).

11. Edwin H. Sutherland & Donald R. Cressey, Criminology 75 (10th ed. 1978).

12. Clifford R. Shaw & Henry D. McKay, Juvenile Delinquency and Urban Areas 14 (rev. ed. 1969).

13. Julian W. Mack, The Juvenile Court, 23 Harv. L. Rev. 104, 107 (1909).

14. Youth Criminal Justice Act, S.C. 2002, c. 1 (Can.).

15. United Nations Standard Minimum Rules for the Administration of Juvenile Justice (Beijing Rules), G.A. Res. 40/33, annex, rule 5.1 (Nov. 29, 1985).

16. Convention on the Rights of the Child art. 37(b), opened for signature Nov. 20, 1989, 1577 U.N.T.S. 3 (entered into force Sept. 2, 1990).

17. Pratap Singh v. State of Jharkhand, (2005) 3 SCC 551, 558 (India).

18. Shilpa Mittal v. State of NCT of Delhi, (2020) 2 SCC 787, 798 (India).

19. Richard E. Redding, Juvenile Transfer Laws: An Effective Deterrent to Delinquency?, Juv. Just. Bull., Aug. 2010, at 3 (U.S. Dep’t of Justice).

20. Lawrence W. Sherman et al., Restorative Justice: The Evidence 76 (2007).

REFERENCE(S):

Cases

Graham v. Florida, 560 U.S. 48 (2010).

Miller v. Alabama, 567 U.S. 460 (2012).

Pratap Singh v. State of Jharkhand, (2005) 3 SCC 551 (India).

Roper v. Simmons, 543 U.S. 551 (2005).

Shilpa Mittal v. State of NCT of Delhi, (2020) 2 SCC 787 (India).

Statutes and Legislation

Age of Majority Act, No. 9 of 1875 (India).

Apprentices Act, No. 19 of 1850 (India).

Children Act 1908 (Eng.).

Indian Penal Code, No. 45 of 1860 (India).

Indian Reformatory Schools Act, No. 8 of 1897 (India).

Juvenile Delinquents Act, S.C. 1908, c. 40 (Can.) (repealed).

Juvenile Justice (Care and Protection of Children) Act, No. 56 of 2000 (India) (repealed).

Juvenile Justice (Care and Protection of Children) Act, No. 2 of 2016 (India).

Motor Vehicles Act, No. 59 of 1988 (India).

Prohibition of Child Marriage Act, No. 6 of 2007 (India).

Protection of Children from Sexual Offences Act, No. 32 of 2012 (India).

Representation of the People Act, No. 43 of 1950 (India).

Social Work (Scotland) Act 1968 (Scot.).

The Protection of Women from Domestic Violence Act, No. 43 of 2005 (India).

Youth Criminal Justice Act, S.C. 2002, c. 1 (Can.).

Young Offenders Act, S.C. 1982, c. 110 (Can.) (repealed).

International Instruments

Convention on the Rights of the Child, opened for signature Nov. 20, 1989, 1577 U.N.T.S. 3 (entered into force Sept. 2, 1990).

United Nations Guidelines for the Prevention of Juvenile Delinquency (Riyadh Guidelines), G.A. Res. 45/112, annex (Dec. 14, 1990).

United Nations Rules for the Protection of Juveniles Deprived of Their Liberty (Havana Rules), G.A. Res. 45/113, annex (Dec. 14, 1990).

United Nations Standard Minimum Rules for the Administration of Juvenile Justice (Beijing Rules), G.A. Res. 40/33, annex (Nov. 29, 1985).

United Nations Standard Minimum Rules for Non-Custodial Measures (Tokyo Rules), G.A. Res. 45/110, annex (Dec. 14, 1990).

Books

John Bowlby, Attachment and Loss: Vol. 1. Attachment (2d ed. 1982).

Erik H. Erikson, Identity: Youth and Crisis (1968).

Jean Piaget, The Psychology of Intelligence (Malcolm Piercy & D.E. Berlyne trans., 2d ed. 2001).

Journal Articles and Reports

Sarah-Jayne Blakemore & Suparna Choudhury, Development of the Adolescent Brain: Implications for Executive Function and Social Cognition, 47 J. Child Psychol. & Psychiatry 296 (2006).

Julian W. Mack, The Juvenile Court, 23 Harv. L. Rev. 104 (1909).

Terrie E. Moffitt, Adolescence-Limited and Life-Course-Persistent Antisocial Behavior: A Developmental Taxonomy, 100 Psychol. Rev. 674 (1993).

Richard E. Redding, Juvenile Transfer Laws: An Effective Deterrent to Delinquency?, Juv. Just. Bull., Aug. 2010 (U.S. Dep’t of Justice).

Laurence Steinberg, Adolescent Development and Juvenile Justice, 5 Ann. Rev. Clinical Psychol. 459 (2009).

National Crime Records Bureau, Crime in India 2022 (Ministry of Home Affairs, Gov’t of India 2023).

^[1] Author of the Article is a III year Law student at Acropolis Institute of Law, Indore (M.P)

^[2] An offical mail id of the author