Final answer:
In Western cultures, adolescent rebellion is considered a social norm, reflecting expectations of teenage development and independence. Misconceptions about adolescent behavior are common and what is 'normal' is often determined by the societal values and moral codes.
Step-by-step explanation:
The idea in Western cultures that a certain amount of adolescent rebellion is considered normal and perhaps even healthy likely reflects a social norm. This is evidenced by the cultural expectations that teenagers will challenge boundaries as part of their development into independent adults. There are beliefs that without a willingness to take risks, adolescents might not develop the motivation or confidence to leave their family and establish their own lives. The concept of social norms is further illustrated when considering teenage behavior in purchasing decisions, such as buying clothes, where adherence to peer influence is often seen.
It's also important to differentiate between the misconceptions or myths versus reality when it comes to adolescent behavior. While there are misconceptions, such as the belief that teens can eat anything without gaining weight, these are not backed by scientific evidence. Similarly, what is considered 'normal' behavior in various societies is deeply influenced by the social norms of those societies, reflecting their values and moral codes.