I live in a ski town that caters to the Los Angeles crowd, and I feel you on all that. 4 wheel drive does not mean 4 wheel stop lol. We are lucky in that we don’t get that permafrost y’all get up north, usually the roads dry out a few days after a snow storm so snow tires aren’t mandatory up here. But the number of overconfident goofballs in the winter is way too high.
The big one I can think of are snow rated tires, most people have plain old radials that don’t do squat in snow. And then you have people that don’t know which axle is their drive axle and that’s always fun to watch. Thankfully I have a two door wrangler with all terrains that is a breeze to drive in snow, very rarely do I have to chain up.