I am for it. I think in Germany, it is also legal -- you need to get a permit of some sort, and there is a psychological evaluation to be done before a woman is allowed to choose this job for herself. I think legalizing this way is ideal -- you take the power away from criminal bands and pimps, allowing women to make money for themselves without owing it to a dangerous boss. You also allow them to get good healthcare and more chances. Also, regular testing for STIs.
In society where it's illegal, we all know it still happens -- but then the prostitutes don't have a chance, the criminal people abuse them and the system will punish them instead of helping them. It also makes biases harder and can lead to a lot of violence and discrimination. A documentary I saw, the prostitutes explained how cops treated them like trash and sometimes assaulted and raped them because they considered these women scums and criminals anyway. All of this has got to stop.