@breadandcircuses Not everyone lives in a city. All those millions of people in towns and villages will always need private transport of some kind, unless one would rather try to forcibly depopulate the countryside like some modern-day version of the Highland Clearances.
@hughster
In less wealthy countries - say, much of Central America - there are indeed millions of people who live in rural villages, and very few of them own private cars. They live in those places because they're engaged in land-based subsistence activities and produce most of what they need locally. They often have a bus that periodically takes people to the nearest city, and usually bulkier supplies that are needed from a city are delivered occasionally by a cargo vehicle.
@breadandcircuses