The issue is also compounded if you work a blue collar job where it's likely that you aren't even commuting to the same place every day and need to haul tools with you.

It's really easy for people to make blanket statements that you shouldn't drive if you have a history of being tired at the wheel, but the reality is that a large portion of our population doesn't have an option.

You keep writing as if this is a normal problem that everyone faces. If it were, and if everyone or even a moderate proportion of drivers were doing what you seem to be arguing is essential, then population numbers would be falling rapidly due to all the fatal accidents. As far as I can see, however, you haven't actually provided any data to back up your repeated claims about how widespread this problem is and how much damage would be caused if the relevant drivers stopped driving when they were unsafe.

You have no idea how microsleep works.

Susceptibility to microsleep is usually a result of failing to sufficient good quality sleep normally, an underlying medical problem, or both. Common conditions like obstructive sleep apnoea can be tested for. Effective treatments like CPAP machines exist. Given that OSA can have other serious health effects as well as causing the unusual tiredness that becomes a danger if you're doing something like driving or operating heavy machinery, investigation and treatment of potential sleep disorders is definitely recommended.

Of course if you simply don't get enough hours of sleep regularly, if you don't sleep well because you do things like drinking excessive amounts of alcohol in the evening, you can go to bed earlier, cut down on the booze, etc.

You (as in specifically you) could be experiencing microsleep on a regular basis and never even know it.

Given that there are many warning signs of microsleeps, one of which is being very tired all the time, and given that the subject of this thread is people driving when they know they're so tired they might fall asleep and having a history of scares caused by falling asleep at the wheel, I don't see that your attempt to make this personal has any relevance to the debate.

You say that as if there weren't any other options. You have public transport and you can share a car (and expenses) with someone who has your same destination.

> For most people, it's a life and family destroying sentence.

Dying in a car accident is literally a death sentence and has worse implications for your family.

So, how does this work, exactly? So you set up carpooling with a coworker. And then one day you don't sleep well. Luckily enough, they're there to pick you up so you don't have to drive! ...but what happens when it's your turn to drive? You tell them, whoops, I'm tired today, so you're going to have to drive and get your spouse to change their plans so that you have access to a car? Or maybe they're always the one driving... what happens on days that they're tired? They cancel and you both have to find your own way via public transit?

Like what are the specific logistics here, accounting for failure modes? Does it amount to "spend $100 on Uber on days after a mediocre night's sleep"?

I think if you fall asleep while driving regularly there is a serious and systematic problem.

How do all these hopelessly trapped families ever take their kids to things like medical appointments?

If so, there’s something of a sliding scale. Most of them take their car - their single car, that serves the whole family. When it breaks down, they lean on friends, family, and neighbors for help.

Those without a vehicle in the first place... don’t. I live in a town of <15k people today, and grew up about thirty miles outside of it. I graduated high school in the early 2000s - many of my classmates didn’t see a doctor unless they had a medical emergency.

It seems like there is a large disconnect between your perception and the reality of life for much of America.

Some of the earlier discussion here has apparently been mostly people talking at cross-purposes and didn't turn out to be very enlightening. However, it does seem that at least some people here really are trying to defend something that I think most people would consider unconscionable where I come from. The arguments have essentially been that people there have no realistic choice but to rely on theirs cars, even if driving them is obviously dangerous, or they literally can't live a normal life and support their families properly.

This raised a lot of questions for me that single-car or car-free households face all the time over here, like how you get the kids to school or anyone who isn't the driver to important appointments like medical ones. I was surprised that your response was more-or-less "you don't", but then in the context of medical appointments there is again a very different culture here to yours. It would be similarly unconscionable for most of us in the UK to bring a child into the world and not then make sure they get all of their check-ups and vaccinations at the right times, and you'd have to try very hard to find a situation where a parent without access to a car couldn't still make those provisions for their child in some realistic way. From comments by yourself and others here, I conclude that this is not necessarily the case in the US, or at least in significant parts of it.

93% of American households do - and I expect if you took away a few large dense metros like NYC and Boston, that number would jump up to about 98%

No you don't. In 95% of the US "Public transit" is maybe a bus that stops a mile away once every 2 hours. If that.