Americans own cars because most of them live in single-family houses on large plots of land, and that doesn't make public transit for daily commuting a realistic possibility. In Paris car ownership is very low, maybe 1/3 of adults, but in rural France the car ownership rate is easily 95%+. I haven't seen a single developed area in the world that has violated the rule that low density = high car ownership and vice versa.
The other rule that I have never seen violated is that the large majority of middle and upper income people do not want to live near low income people, due to crime or other reasons. In Europe, poor people live in the suburbs, so the middle income live in the city with high density housing. In the US and some other places (south asia), low income people live near the business center, so the middle income live in low density housing in the suburbs. These are for historical reasons and cannot be easily changed.
The real reason Americans own cars is because we’re rich enough to afford a more expensive and more convenient system. Public Transit at scale is surprisingly cheap when compared to all the costs associated with car ownership * 10’s of thousands of people in even a fairly small community.
Tiny remote communities rarely make enough for transport entities to care. For instance, without vehicles, in the village I live in, we’d probably be connected via bus to the nearby town, where you can do some shopping from a dollar store and get something to eat at restaurants, but to be connected to the various cities? They may have daily shuttles, but the population (<300) may not make this worth it. And as established in the thread public transport sucks and would make running errands impossible.
This doesn’t even compare to the truly remote individuals who live in the country miles out.
Honestly I feel like people who live in cities really lose their sense of scale for how large the US really is and how small a large percentage of communities are. I mean almost 1/3rd of the US population is crammed into less than 1% of the total surface of the USA. Using the 333 most populace cities in the USA gives an average population density of ~3,150/square mile. Out in the country where I live, we’re maybe 50/sqm, and further out that can drop to .25/sqm or lower.
Not to mention the fact that the reason public school buses work is because for the better part of the year the destinations are ironed out and rarely change. Little Æ is going from home to school and back 90% of the time. That simply doesn’t reflect an adult’s lifestyle, because while every child in a given area goes to a single school, jobs are much less localized. Not to mention errands, hobbies, visiting friends.
A bus schedule simply cannot replace the flexibility of a car to a large percentage of America.
I grew up next to farms and a school bus showed up 4x a day to take kids to k-6, or 7-12. It was a long and inconvenient trip, but that’s because we were living in the middle of nowhere.
Farmers are a perfect example of why some globalized public transport is impossible and why private transport is required for society to function.