The downside to China's way is that driving is A LOT slower because you have to assume no one is following the rules. I've been a passenger in China where there

The downside to China's way is that driving is A LOT slower because you have to assume no one is following the rules. I've been a passenger in China where there were multiple near misses but was averted because the actual driving speed is low. This is the same in many areas of life and industry: if you can safely assume everyone follows some standard, you can optimize but arriving at that set of rule and rule following behavior takes time. China is very much in the "move fast break stuff (sometimes literally)" phase.