Wait before you hear of inter-city transit and a company called BlaBlaCar. While by their own claims they just organize people to give someone a ride while going to the same town, the way to really min-max it was to get a retired, nearly scrapped bus, act like multiple virtual vehicles, and then carry 10+ people without any legal safeguards for them. The’ve got some pushbacks and the service now is less tolerant to such cases, but that’s still insane. Yet, for various reasons, people take it over dying public infrastructure like official bus depots, trains, for it’s cheaper and stops when it crosses town instead of being based in a distant station on the edge of city limits. They weren’t great, but they were at least career drivers looking into each other with some minimal checks, timetables, that municipal power could regulate. And then there’s a rando (even if ex-driver) who bought an old vehicle and drives it until it either pays off or they get asleep behind the wheel on a highway leading to dozens dead.