I live in a city with many restaurants and MANY Chinese restaurants. We used to have a newspaper that printed the restaurant closings. If there were 30 restaurants closed, HALF would be Chinese. I don't eat in Chinese restaurants any more.
Cleanliness COSTS. The Chinese will spend money on the tangible things: education, cars, real estate, jewelry but cleanliness? Nope. Why bother to clean the restaurant every day? It will just get dirty immediately. Better to spend money and get someTHING for it.
They aren't of the Christian mind where "cleanliness is next to godliness."