Just that Thailand has been an accepting country for all types of sex activity for a long time, sex tourism, for 6 decades, including transgender and ladyboys, along with a much more relaxed attitude towards prostitution. Trafficking of humans here is huge, being a big hub of that activity., along with slavery itself. I'm not near a prude but just moral thinking. Allowing people to be used, and profiting from it, isn't what you would call a good thing.The Buddhist culture itself might be more forgiving, but still looks at all of this as immoral and bad karma.