Edit to add my opinion so I’m not just replying “I agree” to 90% of comments. I think it should be legal, properly regulated, taxed and viewed as a profession. I haven’t personally engaged in it but I have no moral objection to it. I do hate the common sentiment that it was the individual’s “only option” though.
Its an acutely exploitative labor relation that should be heavily regulated within a capitalist system in order to reduce the amount of abuse the people engaging in it experience. Ideally I want a system where no one feels a need to sell their body for a living. No one should be coerced into sexual relations.