[KevinP73]

Anybody who has ever raised a child will tell you, starting at about two years old a child will do exactly the opposite of what he/she is told. It's how they learn boundaries.Tell a two year old boy that the dolls are not for him or that dresses are for his sister and dolls and dresses are all he's going to want. He's relying on the parents to define his boundaries even if they are just social constructs.
What's the old expression ? The best way to get something done is to tell a teenager he's not allowed to do it. Have you ever told a teenage girl her boyfriends a loser and she's not allowed to see him anymore ? Yea. That works.