Cleon
King of the Pod People
Because a man is driven to using prostitution out of the naturally irrational libido. Not much, other than hunger is as powerful. I see society as something that should decrease irrationality.
I see a number of problems with this. First, I don't think that necessarily makes prostitution "abuse." It makes it a response to an irrational drive, but not abuse.
Second, legally enforcing rationality--especially when it's fighting against something as primal as the human sex drive--is an exercise in futility.