Also, I believe in the whole prostitution legalisation discussion, the opinion of the prostitutes is almost never asked. There might be help groups (perhaps with a Christian, feminist or other motive) that are asked their opinions on legislation, but the prostitutes themselves seem to be ignored. Perhaps they are too often viewed as damaged goods. As people that can't make good choices by themselves.
On Twitter I follow a prostitute[0] that _seems_ to be an engineer during daytime and prostitutes herself in the evenings and weekends, more like a hobby. I also know another woman in The Netherlands that is a secretary during daytime, but in the weekends she often prostitutes herself, mainly to a group of regular customers (she doesn't advertise much, AFAIK). Also in The Netherlands there's an interesting blog [1] by a woman that prostitutes herself at home, but in the past worked at various locations. All of these woman seem to be perfectly fine with their choices.
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I prefer the situation in Nevada where they did legalize it. There's generally specific places (brothels) where you go for the prostitutes. They might invite you at bars. The women have a nice location, everyone gets STD checks, and there's security on-hand in case of unruly customers. Owner and state obviously makes money. Customers that are pro-prostitution are happy. Those anti-prostitution at least know the stuff is at a distance from them. If not decriminalization, it's the compromise I push in the U.S. with something like Swedish model if other side is dominated by hard liners.
I always thought the Swedish approach was pragmatic. Prostitution isn't illegal, but purchasing sexual services is. So the prostitutes have nothing to fear, only the johns.