Tens of thousands die falling on stairs every year. You don't have to fall out of the sky to die. Just last year a good friend of mine had to bury her sister because she fell while exiting her car. You are more likely to survive than in small aviation crashes but most people (probably Felix included) spend way more time on that than flying. As a motorcyclist I'm surely not well of either when I suddenly fall unconscious.

There are many activities where you really should not pass out while doing them, but they don't make for interesting headlines.

"Many people die from X" is different than "you will most likely die if you X".

Most people who pass out in vehicles probably survive. Say we ignore the cases where you're on a side street, stuck in traffic, going at slow speeds, etc. (and just end up idling in the road with people honking/routing around you) -- so just consider the deadliest case, going at speed on the highway. While there aren't statistics for this particular scenario, we can look at the numbers for multi-car collisions in general, as that's near to the worst thing that could happen if you did just stop managing your car while at speed (gliding into the median is much less likely to be fatal): https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/.... One line in the report suggests this should be broadly comparable to what we're thinking of: "In about 40 percent of fatal single vehicle rollovers and 57 percent of multi- vehicle rollovers, investigating officers reported that no crash avoidance maneuvers preceded the crash".

Even still: the fatality rate is <10%!

Compare to >80% if you pass out while doing underwater cave diving.