Peer pressure refers to the influence exerted by a group in encouraging a person to change his or her attitudes, values, or behavior in order to conformto group norms.
When you were a little kid, your parents usually chose your friends, putting you in playgroups or arranging playdates with certain children they knew and liked. Now that you're older, you decide who your friends are and what groups you spend time with.
Your friends your peers are people your age or close to it who have experiences and interests similar to yours. You and your friends make dozens of decisions every day, and you influence each other's choices and behaviors. This is often positive it's human nature to listen to and learn from other people in your age group.
As you become more independent, your peers naturally play a greater role in your life. As school and other activities take you away from home, you may spend more time with peers than you do with your parents and siblings. You'll probably develop close friendships with some of your peers, and you may feel so connected to them that they are like an extended family.
Besides close friends, your peers include other kids you know who are the same age like people in your grade, church, sports team, or community. These peers also influence you by the way they dress and act, things they're involved in, and the attitudes they show.
It's natural for people to identify with and compare themselves to their peers as they consider how they wish to be (or think they should be), or what they want to achieve. People are influenced by peers because they want to fit in, be like peers they admire or do what others are doing at the time.......Be a leader not a follower...learnt it from my daddy :)