Leaving carts outside the corrals at the store. Failing to signal. Actually a lot of car or car adjacent behaviors. All of which go back to "my immediate convenience is more important than being a conscientious member of the society I live in with other people."
It’s the lack of awareness that gets me. You’re operating a 2+ ton vehicle at speeds significantly faster than humans can reach by themselves, amongst a group of other people doing the same, and you figure it’s okay to be unpredictable?
Unfortunately that’s not something you can really test for, that blasé attitude towards interacting with traffic, since most early drivers are going to be on their best behavior, and this is developed after years of getting away with it (or NOT but somehow still doing it?).
While I definitely agree that routine checkups like that should be happening (and especially for people who just got their licenses or are 60+) at least for a car dominant culture like the US I can see that being a huge burden both on safety organizations/DMVs and on the drivers themselves. :/