Vanity is ok as long as you *really* know what the hell you're doing. A lot of times that isn't the case, like with younger girls who expose their bellies. I remember this one younger girl who used to be a classmate of mine wore an item that exposed her stomach to a school dance once, and she spent most of her time there pulling the thing down because she wasn't comfortable with it. But now she's used to it, she dresses like a different person, and in fact it didn't make her any prettier either.
I know that even myself, I dress a lot differently than I used to years ago because of this new... arising social awareness let's call it. Still I'm sure I'd put on a muscle shirt if I knew I was ripped.
