This is the problem. I truly believe this.
Oh, and don't get in the way of one of their "convoy" people trains. They'll run your ass over and not be sorry.
Totally different expectations of courtesy, and proximity, in many Asian nations. It's just cultural.
First time I noticed it was during a high school trip to Hawaii. At the time, it was mostly Japanese tourists (they practically owned the island of Oahu in the 80s/early 90s), although now Chinese tourists are also prevalent there. The major difference was in waiting for access to confined spaces. For them, waiting for an elevator, they push up against one another and past each other, in an effort to get to the front. Then, the moment the elevator doors open, nobody is waiting for the folks on the elevator to get off first, it's just a complete free-for-all with people trying to get off, while being pushed and shoved around by people trying to get on. In American and most Western cultures, that's rude behavior. For them, it's simple, daily life.
For those who haven't been to Asia in general or China specifically, and especially into the factories which are VAST-- larger than many American cities by themselves-- you really don't have any way to understand just exactly how cramped and close, people there live. It's mind-boggling. In factories like Foxconn they "hot-bunk" which means they share beds/living quarters. People on day shift live and sleep in those bunkbed quarters at night, and people on night shift live and sleep in those bunkbed quarters during the day. And really, most places run 3 shifts, so it's just constantly being packed into close quarters with other humans, at all times of day and night.
Just pointing out some other cultural and physical differences between places where this virus originated, and our own country.