Autonomy is being able to choose for yourself your standard of conduct, the direction of your actions and the risks you’re willing to take.
Autonomy is the very meaning of adolescence (and of education in general). Teens can experiment. They have to take risks to grow; they have the right to make mistakes.
Travelling is a means of developing emotional, behavioural and ideological autonomy for teens by freeing them from their familial and social environments.