MLs tend to make small talk with new customers. Break ice and pass time. One ML asked me which country I am from. I showed her my waxed area and ask her to guess. She replied Singapore.
China guys and Malaysian guys seldom do all these hygienic stuff. I explained to her that some urine leakage may occur from time to time. The pubic hair absorbs the urine. So even if the guy shower, there will still be some smell. Once waxed/shaved, no such issue therefore more hygienic. PRC ladies don't understand this angle. They think only people with std need to shave pubic hair