Quoting Back to Noob Status:" Post whore today. "Halloween is the one night a year when girls can dress like a total slut and no ... [snip!] ... looking a two-dollar hooker, would you give her candy? And bonus points for anyone who can tell me where the quote came from."
I think women can dress up however they want.
I hate the fact that society expects it though. There are hardly any costumes that aren't "sexy nurse" or "sexy cop" or whatever. It's annoying that it's expected.
I wouldn't allow my daughter to do so because she isn't an adult (and as a teen she won't be an adult either). if another kid did it, I wouldn't say anything because it isn't my business.