I just don't believe politics has anything to do with automatic line forming. Is Sidney really as dense as SF or NY? If we only have Aussies living in the US, will they really be lining up at NY subways? I kinda doubt that. Plus, these dense cities are usually not the type that love 'freedom' nor Trump.
Another example would be people automatically turning a broken traffic light into a 4 way stop sign at intersections... I don't believe drivers in either Taiwan or China will be able to do that. However, I'm pretty confident drivers in Australia and US should have no problems doing that.
So I do believe population density is probably the main driver, but I can agree cultural inheritance/influence could have something to do with that too. China was war torn and occupied for a long time... and add cultural revolution, one child policy and dense population in the mix... it's understandable that the population end up becoming more selfish and distrustful of others. No amount of socialism will be able to transform people to all of a sudden to want to sacrifice self for the gain of the whole. It will take some time for China to get there.
I guess another reason why I hate the CCP is because they've done great damage to Chinese culture.