So, um, what's with waxing "down there"?

I was going to ask this in a related thread, but it sounded like a thread crap. I don’t mean it that way. It’s none of my business what people do with their own bodies and I honestly make no judgements. I’m just curious.

Why would a grown women want to look like an 8 year old girl “down there”?

Granted, this question comes from someone who has never worn a bikini in her life (a bikini bottom would run away convulsed in scornful laughter if I even looked at it). I understand about hair coming out the sides. I understand about trimming to make easier for a man to find a clitoris. But…Brazilian (which I take it is all the hair removed)? Why? What is it that makes it worth the pain, cost and discomfort (ingrown hairs and whatnot)? It seems kind of creepy to me, if a woman is doing it at the behest of her boyfriend/husband. Why would a woman want to do it for herself?

I loved Colin Farrell’s reply to a Playboy question: