[lucyjojo]

but there are policy differences

american cars are measurably bigger/taller/heavier than in EU/JP. and they drive measurably faster than in EU/JP. and the walking infrastructure (crossroads/pavements) is measurably worse.

also anecdotally it's way easier to get a driving license in the US than in France or Japan (I don't know for the other EU countries) so i suspect there is a higher number of bad drivers on the road, but i have no proof for that.

that said, i went to my license renewal training session in japan last month and they informed us that the most accident-prone situation is similar to the op's one. (left-turn but on green, since turn on red is illegal and we drive on the left). when those happen generally there is a big rework of the spot to avoid repeat accident. and we have a lot of old drivers too...