People in Asia wear masks because they are more used to.
Their numbers may be better for a multitude of other factors, such as social distancing, here and in the US there are still many people gathering socially and in public transport.
Wearing masks has little protection, as the virus is heavy and not airborne, and give people a false sense of security. Masks prompt people to touch their face more often which increase the risk.
Masks only work if they also cover the eyes, as you can get it through your eyes, nose or mouth.
They reduce the risk of spreading the virus, not of catching it.
The best advise is social distancing, wash your hands, don’t touch your face with unwashed hands.