Got away from a crowded, polluted city when I retired, to a tropical island with cleaner air, less traffic, better weather.
It's not perfect, but I know I would be less fitter, less healthier, and less happier if I had stayed in London.
Thailand has its downsides, but the good outweighs the bad as far as I am concerned.
As for any hedonism, I outgrew that a long time ago.