When it comes to buying clothes, teenagers often follow social norms; this is likely motivated by
following parents’ rules
saving money
fitting in
looking good

fitting in

Explanation:

Many teenagers are terrified that they will be rejected if they reveal their true identity. So they act the way they think best fits their environment, the way they think others would like. This need to fit in often influences behavior, personal tastes, and even how to dress. For this reason, when it comes to buying clothes, teens often follow social norms; this is probably motivated by the adaptation