U. S. researchers have said that girls and teens who are easy to supervise and teens with better educated parents tend to have more decision-making autonomy than others.

They tracked about 200 white European-American families over a nine-year period, the Pennsylvania State University researchers have said. It was reported by the parents that who made decisions in their children's lives,
including chores, appearance, curfew/bedtime, health, schoolwork, social life, activities and money.

It was found by the study that young people's input into decisions increased gradually from ages 9-14, and then surged from 15-20.

It was further found by the study that young people had more input into decisions about appearance, activities, schoolwork and social life than about chores, health, and curfew. However, for those ages 18-20 decisions about
money and health were still being made jointly by parents and adolescents, suggesting that autonomy developed more gradually for these types of decisions. (With Inputs from Agencies)