Here is a thought, and I am asking seriously: why would the choice not apply to sex-workers and their clients? Why is a woman (or a man) who willingly wants to make money by providing sex services not allowed to do so legally? I am not talking about intimidation, human trafficking etc. If we have two consenting adults, and one of them wants to be paid for the act, and the other is willing to do so, why is that choice between the two illegal?