The large influence of peer group on children's behaviour is depending to there parent's if parent's are do the struggle to spare much time with there children's so many children's will learn much things to there parent's if we talk about today's children's so many childrens spare there time in many bad activities like playing outside for hours,that's the big reason to change the children's behavior so parent's should must focus to there children's that what they are doing is that good for our children's or not.