The peer group is an important phase in adolescent development. It is the peer group where the standard for what is normal or deviant begins, especially in terms of physical changes, body image, and behavior. The adult intimate relationship starts to be experienced through heterosexual and homosexual friendship. In adolescent development the peer group becomes a secure atmosphere as the adolescent commences to separate him or herself from the family. It is in the peer group that the adolescent feels more comfortable expressing his or her feelings and exploring changes of common origin.
It is through the refining of the adolescent’s skills and achievements that a healthy sense of competitiveness is developed. Ideas of contemporaries help to define lifestyle, career, and further education.
Cliques are common among adolescents who desire to be included into the proper groups. When that does not happen some experience feelings of isolation and pain which leads to distress.