It's not what they're doing either, but it's how they're doing it. None of them ever do it on their own. Usually grandma or grandpa are squatting down with the child and holding their legs apart in their arms while doing it. It's just... very peculiar. It's not that the kids aren't potty trained either. They wear diapers when they're not, but once they become potty trained, they'll have their bums flying in the wind, even in winter! It's just.... bizarre.... can't they pull their pants down?
Oh and better yet, they are whistle trained. When grandma and grandpa want the kiddie to pee, they whistle. Then the kiddie pees. It's.... well, I dont' even know what to say about that.
The thing is that they also don't really care where the kid does it. Last week, I was on the Shanghai Metro and grandpa took the kid to the door and he tried to get the kid to go when the doors opened at the stop. However, the doors only open for about 30 seconds so when the doors shut, he just let the kid go on the floor. Then they sat back down and life continued. No one said a word. No one cared..... This is a major metropolis!
Anyway, this is also why no Chinese person ever sits on the ground. They've learned this art of squatting that I don't think our legs are even capable of. You probably have to have been squatting like this since you were 3 to be able to do this.... So right, no Chinese person ever sits on the grass or on the floor and now we know why. There's pee everywhere.