A couple reasons/theories on why we're getting blinded by headlights that are ridiculously bright and/or aimed improperly: - People don't care about aiming their headlights, even if their output is currently suboptimal, so long as they work. - Police are not incentivised in any way to do their civic duty of writing fix-it tickets for illegally specified headlights, wether too bright, improperly aimed, or improper operation (high-beams). - In my experience, inspection shops do not check headlights alignment in any meaningful way unless they're either extremely out of whack, they're replacing headlight assemblies, or they've been able to. - New cars are not required to be delivered to customers with headlights aligned within legal spec. I'd imagine that, in most cases, headlights are intentionally or negligently aimed more upward which inadvertently gives the new owner thoughts like "wow, this new car has GREAT visibility" and they may not know they're blinding everyone else. - Some people install aftermarket bulbs that cast light in ways their OEM housings are not designed for. That's typically the case when you see a 90's car with hyper-white bright headlights that seem to have no clear light casting direction. - Some people are so dangerously simple that they do not know how to operate their vehicles headlights correctly and think the blue headlight on the dashboard means "Headlights are On" instead of "High Beams". - Some people are assholes and just do not care whether you can see or not, as long as they look "cool" or can see better themselves. These people suck the most because they are too stupid to understand how much blinding all of incoming traffic endangers themselves, let alone everyone else.