Parents exert the most significant influence on children's views of gender roles

Children's social development is influenced by what they are exposed to in the home. Until children venture out among diverse social environments, their chief models of behavior are their parents. Parental behaviors may set standards that determine the type of mental associations children make for the rest of their lives. At childhood, individuals are socialized into many of their core beliefs through their parents, namely, chidren typically assimilate their parents' religious beliefs, values, and culture. …

…on each other's choices. Adolescents who associate with other adolescent users of drugs are much more likely to use drugs themselves. Peer influence is a risk factor even when there are no other risk factors are present. For instance, even if adolescents come from families with good values, perform well in school, and live in neighborhoods where people are familiar with one another, they will be more likely to use drugs if their friends do.