There is a huge generation gap between teenagers and the present day adults. The youth are seeking an identity and when adults cannot provide for this, they seek it from their peer groups.
Here, they find the security they need and a response to their personal problems. The strong feeling of solidarity among the members makes such groups very compact. The members give each other mutual support, and together they can stand up to the adult world. These are autonomous groups, for which adolescence is not just a transition period or a passing phase, but a complete world with a significance of its own.