I mean the reasons they are likely in that profession are, well do we need to discuss this again? Do you really need to be so obtuse as to completely ignore the reality of why women are prostitutes?
Lots of people do things that are dangerous and they would rather not do but for the pay. You have a hard case to make that it's the most dangerous job (I can think of many that are more). People rarely do these jobs because they like them.
I imagine there is a whole host of reasons why people become prostitutes, many of which are unpleasant.
But making it illegal for people to do it, just seems to make things a lot worse. Furthermore, it doesn't address the problem that, for the women doing it, it is their best current choice (as expressed by the fact that they are still doing it).
There are of course lots of problems with it. And I know that a system permissive of prostitution also comes with many problems. But so does prohibition.