What is so bad about being normal?

I understand that there are some behaviors or ideas that are considered normal that may cause harm to others. I’m not talking about those kinds of normal.

I mean the kind of normal that doesn’t hurt anybody. I can’t really think of any examples now because what is considered “normal” is actually a shifting, fluid thing. However, I hear all the time people say things like, “I don’t want to be normal,” or “Why be normal?” and the like. So, I’m curious. What is so bad about being normal?