Again, said no woman ever.
Because A woman's body, specifically the interior thereof is not like a suit. by your logical argument:
If i say: One does not simply buy or sell children as of they were pets.
You say: so what is it exactly that makes you so upset?
Uh because they are not pets and shouldn't be sold.
Of course my analogy isn't completely comparable (a woman owns her own body more than she owns her children) but it's the same flaw in your logic.
When a woman sells time inside her body it is not nothing, it is not like hiring a suit.
Women are typically, uncomfortable with two parts of prostitution.
- the idea that a man who is intended to be sexually faithful to her has his dick inside another woman
And/or
- that a woman's body is treated as a commodity that can be paid for like a suit or fairground ride.
Because, like it or not, sex is one of them funny things in our society that comes with feelings (not just we ladies either. People, including men, murder for the sake of it). And society is, thankfully, more comfortable with women having enjoyable sex with men they are sexually attracted to. And willing and enthusiastic participants.
It isn't like waitressing or massage or accounting or hairdressing.