In Amsterdam we have the same problem. It is mostly housewives, or part-time students who are charging a lower rate, they see it as extra pocket money! And I mean for a 20 yr old working part time in the Grocery store, and studying, who's monthly salary is 600-800 euros, when they can charge 100 an hour and get 5 or 6 clients a day! You can see why they are popping up all over the place. They don't have the expenses we do, their photos are taken in some cases with a phone camera, they don't have a website, and in Holland condoms are cheap, or free! Some cheap lingerie, a red scarf over the bedside lamp, and instant bordello! Plus, the media aren't doing us any favors either, expose here, expose there, the general public becomes more aware of this 'kind of thing going on', and well you know the rest. Frustrating it is.