And you know this how?!
I worked with a girl who did body rubbing at $500 per hour. She thought I'd make a good body rubbing girl and I didn't want to. Not only would my father come back from the dead but he'd take me back with him too! You'd be surprised what men will pay for. There's a whole underground business that the government would love to tax to death. Half of college girls are probably stripping IMHO.
I will add that the stripping trade appeals to a lot of girls with low self esteem. When you don't think you're pretty, and someone comes along and says 'you'd make a hot stripper' a lot of girls do it.