> Even if it's not accurate for everyone, it's accurate enough for vast majority of people.
It has to be accurate for everyone. You're talking about imposing a restriction that amounts to house arrest for anyone who can't afford a city apartment or a chauffeur.
> Even if you talk about someone cutting you off, that doesn't happen often.
I see that you have not experienced the wonders of New York traffic.
> You aren't going to get 5 "coin flip" accidents in 5 years.
If you flip a coin 5 times in a row, the chances of it coming up tails every time is 1 in 32. Against a hundred million drivers that's a lot of people.
And that's assuming it's fully random and not e.g. you have the first two falsely attributed to you at random, at which point investigating officers see your record and become biased to finding you at fault in any case going forward.
> If you really think that fault will be attributed to you incorrectly that often, then your insurance will surely go up, so you already have a dash cam to protect yourself from this existing reality you are peddling?
People don't think it will happen ahead of time, they realize it can happen after it already has.
US motor vehicle laws are also (presumably intentionally) designed to let the police come to any conclusion they want as a pretext for searches or revenue-generating citations. For example, hardly anybody follows the speed limit, so if you drive below the speed limit then you're impeding the normal flow of traffic (nominally a violation), and causing a (real) hazard because other cars will bunch up and perform lane change maneuvers to go around you. It's also "suspicious"; the people who do it are disproportionately drunk or in possession of contraband. But if you drive with the flow of traffic then you're speeding which is also a violation.
A dash cam might then help you if an accident is caused by the other driver doing something egregious, but if it's caused by e.g. bad road design and the officer is nonetheless expected to assign fault to somebody, now you're handing them a pile of evidence from which to identify common violations. It's not obvious that it helps you.
It has to be accurate for everyone. You're talking about imposing a restriction that amounts to house arrest for anyone who can't afford a city apartment or a chauffeur.
> Even if you talk about someone cutting you off, that doesn't happen often.
I see that you have not experienced the wonders of New York traffic.
> You aren't going to get 5 "coin flip" accidents in 5 years.
If you flip a coin 5 times in a row, the chances of it coming up tails every time is 1 in 32. Against a hundred million drivers that's a lot of people.
And that's assuming it's fully random and not e.g. you have the first two falsely attributed to you at random, at which point investigating officers see your record and become biased to finding you at fault in any case going forward.
> If you really think that fault will be attributed to you incorrectly that often, then your insurance will surely go up, so you already have a dash cam to protect yourself from this existing reality you are peddling?
People don't think it will happen ahead of time, they realize it can happen after it already has.
US motor vehicle laws are also (presumably intentionally) designed to let the police come to any conclusion they want as a pretext for searches or revenue-generating citations. For example, hardly anybody follows the speed limit, so if you drive below the speed limit then you're impeding the normal flow of traffic (nominally a violation), and causing a (real) hazard because other cars will bunch up and perform lane change maneuvers to go around you. It's also "suspicious"; the people who do it are disproportionately drunk or in possession of contraband. But if you drive with the flow of traffic then you're speeding which is also a violation.
A dash cam might then help you if an accident is caused by the other driver doing something egregious, but if it's caused by e.g. bad road design and the officer is nonetheless expected to assign fault to somebody, now you're handing them a pile of evidence from which to identify common violations. It's not obvious that it helps you.