I don't really have an opinion on the rights and wrongs of paid-for-sex and I have never myself used such a service (I almost feel 'unmanly' by admitting that I have never paid for sex) but it is interesting that, so far as I understand the situation, Germany has gone for the fully legal route with fully legal brothels and a degree of protection for the (wo)men in them. Whereas Sweden, again if I understand the situation correctly, has made the user of such services liable for criminal prosecution but lifted the threat of prosecution from the service vendor.
As per usual, the situation in my homeland , the UK, is an total fückin screw up!