Fashion (not the song by Bowie)

I never got Fashion. Well, I do get it when people make up their own outfits and are imaginative. I even admire that. But I don't get when people are into the "what's in" and "what's out" idea. Can't they see they are just being milked? And the peer-pressure thing, to arrive at a fancy party and being made fun of if you're wearing something in last year's fashion... WTF? I couldn't even stay around an environment like that.