I think this is a cultural artefact of a car-centric society.
Cars are not really viewed in this way in my culture (Denmark). They're just another mode of transportation, nothing special about them compared to bicycles, busses, trains, etc. People go with what is most convenient. If you need to get some office work done remotely, then being a passenger in a train saves more time than driving a car. If you want exercise built in to your commute, bicycles are better. In an urban setting, cars are in fact seen as a hassle. They're mostly loved by people in rural areas.
I don't deny that cars have their place, but the kind of exploration potential that a car offers (relatively infrequent, longer distances) can easily be served by rented cars. There is no reason to own a car just to go on infrequent car trips.
I didn't gloss over it, it just wasn't relevant to the point I was making. The topic is banning cars in cities, not banning them in general.
Anyway, I don't see a reason to force rural people to not use a car. There's plenty of space out in the country, so let them have their cars. Obviously, we need to transition all cars away from combustion engines in the near future, but that is a separate issue.
I live in central Europe and there is actually quite opposite debate: people are moving to cities in large quantities, so rural areas are becoming emptier and poorer every day. Not everyone can and should live in a big city.
That's crazy overstatement. Railways are not built for cars. Water pipes are not built for cars. Airports are not built for cars. Power plants and transformers and power lines are not built for cars. Dams are not built for cars. Ports are not built for cars. Houses are not built for cars.
How many dams have helipads? Not many, how many can be driven over? That railway bridge? Sized to allow car traffic underneath.
Many airports have about as much car parking (or more) as runways measured by footprint, same for many power plants.
Houses either have a garage or can't be legally built without parking in many jurisdictions, how many of those require helipads?
This is not how we got here. The reason most cities are built around cars is because of a long and successful campaign by special interest groups to remake cities (human living in general, even) around the automobile. I never chose for things to be this way because of how much I like cars (I don't). Almost no one was ever given a real choice for things to be this way. It just happened because it was profitable and because corrupt governments did not force external costs to be paid for by those making the profits.
That being said, it's quite clear that the automobile in it's current form is highly space inefficient. The 4 wheeled structure has not undergone any change since the dawn of chariots. I think a change is coming, not sure when, perhaps with the advent of flying cars from Sebastian Thrun.