Better question is how many of you want your daughters doing it?
Laws against prostitution have been traditionally driven to protect women and girls from sexual exploitation. I understand the motives, but it doesn't work well, and in a land where pornography is not only legal, but heavily promoted, it is absurd to think that girls are not exploited.
"To waste, to destroy, our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by rights to hand down to them."~ Theodore Roosevelt (Message to Congress, Dec. 3, 1907)