I lived in China and Taiwan for many years.
China is by far the worst. Among many other examples:
1. They spit into a zoo’s wild cat exhibit and laugh as the cat licks up the loogies.
2. At a museum, a guard stands under a no-smoking sign... smoking.
3. After standing in line and approaching a ticket window, they cut right in front of you before you can even say the first word to the attendant.
4. They litter on the street without a thought. They have short segments of the street called civilized segments of the street in order to get the people accustomed to not littering, even if it’s just for 40 yards. They can’t even take 10 steps to litter outside the civilized segments.
5. El cheapo parents put open-back-flap pants on their children so the children can poop in the streets and the parents can save money.
6. They are CONSTANTLY bringing phlegm up from the backs of their throats using the most disgusting sounds... nauseating noise pollution, then hawking those loogies not just outside, but inside. I heard this sound in an airplane and sure enough, a man on the aisle just spat on the carpet in the airplane aisle.
I can give you too many other examples. Disgusting!
Oh, I forgot one that was near and dear to my heart:
Old ladies projectile blow their noses into the trash cans from 5 feet away. Actually, their aim is usually pretty good!
(NOT JOKING!)
One thing that really disgusts me is the snot rockets...finger to one nostril, ejecting snot through the other.
It is entirely prevalent in all asian cultures I have seen.
I have seen people do it in America as well, but they generally don’t wind up and do it on a street, especially with people all around. You also see athletes do it occasionally, but they often don’t know they are being videoed.
I do see a difference between someone doing this in private and someone doing it in full view of everyone.