Peers in early childhood are essential to concurrent and future psychosocial adjustment.Experienced through group activities or one-on-one friendships,they play an important role in children`s development,helping them to master new social and processes involved in relationships.This topic is particular interest.Now a days since a growing number of children are exposed to peers even before school age through daycare,and because most children interact with siblings who are about their age in the family context.By age of four at the latest,most children are able to have their best friends and know which peers they like or dislike. However, between 5% and 10% of children experience chronic peers relationship difficulties,such as rejection and harassment. Early problems w/ peers can have a negative impact on the child`s later social and emotional development.Role model for adolescence is a person who serves as an examply by influencing others. For many children, the most important role models are their parents . Childrens look up to a variety of role models from adults to help shape how they behave in school , relationships or when making difficult decisions . Children also look up to other relatives,teachers and peers Peer relationships,especially friendships, serve several important roles in children and adolescent`s personal and social development.A teen`s peers can be part of the most important social relationship in a teens achieve their most critical tasks,finding independence from their parents and developing their own personal identities. Peer relationship are a normal part of adolescence . Prior to adolescence, a child`s friends and access to them are overwhelmingly controlled by parents . However,adolescence is a time when teens begin to select their own friends,spend more time and they often do without the parents supervision.Peers also work together to develop new personal tastes and preferences. As for teens identities,they believe and feel that their parents will be more approving and supportive of their choices.Peers groups can have such an influence on teens, it is important that parents know who their teens spend their time with they can most easily do this and developed a strong relationship w/ their children well before they reach adolescence. Social and emotional development are maturity intertwined . As teens , emotional development increases relationships w/ their peers change as they become more vulnerala and emotionally intimate w/ their peers. This increased vulnerability and intimacy requires greater trust among peers or parents .During adolescence years,teen peers groups become increasingly important as teens experience , more closeness in these friendships and more gratifying relationships w/ their peers as a result. Teens now turn to one another, instead of their families, their first line of support during times of worry or up set . Since it is important for youth to fit in with their peer group they may also decide to participate in the same hobbies or activities as their friends. In general, teens will gravitate toward peer groups w/ whom they share common interests and activities or simply a similar outwork in life . Adolescent peer groups are quite a bit different from the typical circle of friends that are characteristic of younger children . Adolescent peer group increased group due to the changing quality of teens relationships. Increased vulnerability and relationships require more trust. When they feel more secure and confident in their social support system .