One thing you should know about China is, they use crouch toilets!
^ And much nastier than that one, 'cause that one's from Japan!
The reason I mention this is because my country's public bathrooms (meaning, not those that are in privately owned establishments), are still mostly like that. You can imagine my aversion to the filthy things, when I say that I've never used one (because as a rule, people who crouch, don't flush), except for the kind of function you can perform standing up.