I interviewed a bunch of prostitutes as part of my first, college paper on a controversial topic. Legalization was my position. The prostitutes pretty much all said what you just said. Everyone said their work was degrading, exploitative, and shouldn't be allowed. Some straight up got aggravated that others could control their bodies or decisions. Most countered by saying they felt more degraded or exploited in the other jobs where their minds or bodies were hurt all day long for about no money with no respect from anyone. Esp waitressing or retail where customers often treat workers cruelly since they know fighting back might cost a job. The prostitutes all said it was better to be in charge of their life with 30min-1hr of work that was either degrading or boring but with appreciative customers.
So, yeah, that's straight from prostitutes. They agree with you. The bad thing was their voices weren't being heard by politicians who received bribes from whole markets of companies that would exploit & degrade them all day. Politicians only cared about that on certain topics. Worst part was police not caring about them led to more pimps, bullying, and rape by others for at least the streetwalkers or ghetto areas. So, I found that making the inevitable, harmless thing illegal contributed to those things since they were natural side effects of no accountability for what's done to "lesser humans." I then couldn't vote for it being illegal just because it's effectively be voting for people to be harmed that way.
We are taking an already vulnerable and preyed upon population and essentially throwing them to the wolves.
I'm agreeing with you, just want to add that dimension which you touch upon but is the core of my belief.
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.
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.
It's not entirely unheard of for the mia noi to live with the husband and wife. Not common but I've seen it in enough Thai soap operas where it can't be completely uncommon either. Again, as long as the mia noi knows her place, the first wife often is glad to have someone to hand off her house duties to.
One has to understand that some prostitutes in Thailand are able to earn 10x as much money compared to working on a farm or doing factory work. There is a huge amount of money moving from the big cities to the backlands of Thailand. The work can also be relatively easy.
Apart from this, Thailand seems to have a pretty open view regards some aspects of love and sex. From what I understand it's not uncommon for Thai men to have a 2nd unofficial wife (mia noi) or (secretly) a gik (casual girlfriend) in another city. A "mia noi" would generally be financially supported in some way. A "gik" might get some money as well occasionally.
I do know however that the local government of Pattaya wants to change the image of the city, make it less seedy and more family friendly. However, this could be at a huge financial cost. Many Thais benefit directly and indirectly from the sex trade.