This varies by individual maturity and decision importance. Around age five, children can decide between offered clothing options or activities. By eight to ten, they can handle academic subject preferences and friend selection. Teenagers, around fourteen to eighteen, should make larger decisions with parental guidance—career interests, extracurriculars. However, major decisions like medical procedures require parental consent into adulthood. Neuroscience shows brain development continues until twenty-five, particularly impulse control. Parents should gradually expand child autonomy. Some children mature faster; others need longer supervision. The goal is developing responsible decision-makers, not abruptly granting independence.