Halloween Costumes

So I'm just curious as to why girls, women, whatever, feel the need to dress-up skanky for Halloween? Isn't part of dressing up for Halloween the fun of being creative and putting together a spectacular, unique costume? Why does everything have to be the skanified version? A slutty Mrs. Claus, a "naughty" police officer, a beer wench.....etc, etc, etc. You KNOW what I'm talking about. I know this isnt a big deal, and it doesnt affect me in any way really, I just dont understand how the fun of dressing up for Halloween turned into a slutiness contest for girls to outshine each other by wearing 'bedroom clothes' for everyone to see. If I want to see your buttcheeks or boobs hanging out of your clothes, I'll let you know. I would like to see a little creativity this year, but I know it will be the same ole' skank school as usual.