Lots of very diverse responses, thanks.
Some confirming my pessimism, these kinds of relationships aren't easy to navigate.
If I did meet a bf who was a sex worker, personally I couldn't deal with him continuing to be a sex worker as I live here. I fully understand most of the financial support would come from me, but a full time kept boy situation sounds bad, so I guess I would expect him to do something legit for work just to be part of Thai society. I get the problem here. Here is this guy I supposedly care about and "forcing" him to work some boring crap job for peanuts, what kind of love is that he would think, and also likely he couldn't hack a straight job. Maybe that is kind of a parental love, thinking this would be better for him in the long term. Sounds problematical, almost acting like a social worker, not a boyfriend.