I don’t know.
I am living in Vietnam at the moment. Since I have been here, I have noticed people are a lot more aggressive riding than anywhere else I have been.
But the ratio of accidents is remarkably small. I think people here are more observant, as riders, than we are in the US. More defensive riding, if you will.
There is more aggressive riding happening in America I believe. That doesn’t work here, because if you hit something, people stop and say “oh, so sorry”. Then they move on.
I think there is less looking for a payout, if you get wronged. So people pay more attention, to their own safety.
I think. Not 100% sure, but that is what seems to be happening.
Everyone is always paying attention, to what is in front of them. Everyone. Always.
Also there are a LOT fewer cars here.
But bikes have to be careful, because they really are the low man on the totem pole here, as far as safety and rights.
Or in this case the person paying attention to what is behind him when opening a door.
I get the same impression when I see people driving mixed with bicyclists in India; while it seems like mayhem, very few accidents.