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.
I don’t have a problem with prostitution, I have a problem when socioeconomic conditions lead people to feeling like they have to sell their bodies to survive. If prostitution is completely voluntary, then it’s fine.