Well, the worst drivers are those that just keep their brights on, because they have no fucking clue you're supposed to lower them when another car is approaching. Fucking idiots.
Of course, driving, the tall SUVs and trucks that half the time do have their brights on that insist on being behind you. But I think a lot is that the person that angled the SUV's headlights either didn't care, didn't know, or knew and was actively malicious.
(and really, could've been implemented with 1950s technology? as far as I can tell, my lights basically react to oncoming traffic, overhead illumination, and taillights. Using dlp-like active repatterning, now that's the fancy part, but just turning on and off and switching between high and low beams doesn't require a high BoM)
You know it's also true if you are approaching another car (eg. from behind). And if there are people in front of your lights in general it's a pain for them too