My tuppence worth.
It is a large and fluid group with active participants in all of the following areas, all taking something :-
1 girls from all parts of Thailand. But current bar girls are not actually that good. You need someone who is accepting of where they are going and the contract they are entering. That usually means someone a little older.
2 People in Thailand sorting out visas and recruitment. I knew a girl who came in on someone else’s passport many years ago, but with security checks now, I suspect it is easier to find a willing Farang to sponsor ( for a fee) obviously or alternatively make them look like students
3 people in the UK to sponsor them. These are often former Thai prostitutes living in the UK who put up the money. Many years ago, the figure was £15k. For that , you became her pimp until the girl paid off her debt. I knew of a group of Thai housewife’s in west London who put up the money. Their husbands knew nothing about it.
4 people in the UK to sort everything out
Pimp is definitely too strong a word. I never met a Thai girl here who came here, other than of her own accord. Take also the example I used above of the group of Thai housewives in west London. Once the debt is paid off, what hold do they have over the girl? They have as much to lose. Even before that, it is hard to completely enforce. I know of one girl, who paid off most of her contract, met a westerner , then moved in with the westerner and stopped working. There were a lot of heated arguments but who was actually going to do anything about it. Both sides would lose out.
I do believe many very quickly tire of the conveyer belt sex, but until they pay off the debt, most just get on with the job. It is no coincidence that many of the girls here have boob jobs. I knew one girl where that was part of her upfront payment. For her, she needed money but also wanted a boob job. Accepting a contract here covered off both.
I also see many of them are utterly stupid with money when they go back to Thailand. They might go back with £15-25k+ in their pocket but that can be blown in 6 months, particularly if there is a Thai boyfriend about. Then they will be back looking for another contract, maybe in another country. What they are unlikely to do is go back to a bar in Thailand. That would be too much like hard work!
Often the girls will go out from their host either on their own to the location , armed with their mobile phone or their sponsor will take them . Outside on the street, they are not confident at all, so it is easier for a chaperone to take them.
I chatted with one of the girls on the current derby / Portsmouth / Croydon / Bedford circuit. I speak good Thai . She told me she had paid off her debt bond. They were now only taking 10% ( not sure I believed this). But she therefore chose not to work as hard.
I knew of another lady who had a house near my house in Thailand. She had been married to a Farang, had kids and separated. Needed money but not bar girl money. She had done stints in the US and Singapore, then turned up at Olina in London.
I know of another girl in Pattaya. Went out for a drink with her over there via a dating app. She refuses to work in Thailand, only takes international assignments.
I think a lot of the current crowd here, and there are a lot(!) , chose to come here before Thailand fully opened up after covid.
But like all things, the good rises to the top. Those who provide a good service, get good reviews, will make good money very quickly. For the average performers, it is a much slower process. I don’t think many of them truly understand this. But that is true of girls from all parts of the world.