I think it probably should be legal. It could be better regulated and hopefully people participating would be safer. However, I think there still would be people participating in the industry underground, so it will only help so much if it is legal. 14 year olds performing sex acts will still happen even though it is illegal for a minor. This goes with the sex trafficking mentioned in another answer. That is a much bigger concern for me than adults making choices to have sex or not.
If it stays illegal in America, I want the laws to punish the people buying the sex, not the ones providing it. Or, it could be both, but the buyer needs to suffer more consequences.
@Rarebear Parts of Nevada.