What is the most common indicator for the end of adolescence?

The most common indicator for the end of adolescence is the achievement of sociocultural maturity. This concept encompasses various milestones that signify a transition from adolescence into adulthood, including emotional, psychological, and social development. While many individuals may reach their maximal height during adolescence, height itself does not necessarily indicate maturity or the completion of the adolescent phase.

Achievement of sociocultural maturity often includes milestones such as developing a clear identity, gaining independence, making responsible choices, and participating in societal roles. These aspects are more reflective of an individual's readiness to navigate adult life compared to simply reaching a physical growth milestone.

Therefore, the end of adolescence is more contextually and culturally defined by maturity and readiness for adult responsibilities than by physical changes like height or legal age markers like voting or educational achievements.