Going to disagree with your second point. In the UK at least, there’s a lot of friendly “no, after you” type activity. If the road narrows due to an overhead railway bridge or parked cars etc. generally speaking one or both will pull over, flash their lights to signal the other one can go first, and get a friendly wave of thanks when they pass. Letting people in at junctions isn’t uncommon either, though tends to be more the exception than the rule.

There is anger too of course, but usually only aimed at people who aren’t following the rules of the road, have done something stupid/dangerous, or are hesitating for far too long.