In most of those bars they are from the Philippines; some have Thai girls as well. Some of them are hot, but many of them are quite ordinary. Some of them are under-age and trafficked here (often using an older sister's passport). Some of them are approaching 40, have multiple kids and have been doing the job voluntarily on and off for maybe 20 years, and it shows. And all variations in between; many women were trafficked here first time (or at least brought under false pretences) but it became the only life they know and they keep coming back more or less voluntarily. All of them (in the curtain bars) are here with the connivance of ImmD who issue what are, in effect, "prostitute visas" for them to enter Hong Kong for 3-6 months at a time.