Most bigger cities have an exotic nightlife and the more foreigners are around the more interesting it gets.
The difference to elsewhere on the globe is that Thailand is more sex oriented than other places on earth but maybe not they just don't care and don't think about so serious. Actually "the country of smiles" has this in common with other places in the ASEAN Region but not to that extent. To be honest we won't allow others to command us what to think and how to behave. All this is always religious controlled and that is private stuff.
The people's mind is their problem and not one of the other. There is always a willingness to help but it is not the cause of others to snap at others and try to push them into a different mindset. In Thailand, it is mostly related to pretty and sexy Thai girls and Ladyboys, which is a dual issue but they always work in the same environment.
A fact is almost all of them are at the beginning of the living chain of their families with children somewhere else in the country. If the young women do not send money, the others have nothing to eat. In Asia, they are not in the comfortable position that the state pays them via taxes as they do in the EU and other places. In the ASEAN states, peoples must work for a living and can't just go, fill out a form and then get help from the state and watch TV at home.
Here are most of the of pleasure-driven places which are frequented by everyone and nobody should ever think that this has something particular to do with foreigners, people on vacation or similar a number of local people are much is much high higher it's just not as visible. Actually, the fun and pleasure oriented business are just normal and that's the way the people look at it. It is for sure different to the organized crime as they do it in Europe.