The thing that continues to happen is urban residents with limited understanding of the world outside their bubble think a future without cars is anything but a laughably naive fantasy driven by an entirely imaginary utopian ideal.
Car ownership in the US is ~90% (more than one per adult). In The Netherlands it is ~50%. They still have a car per family for longer trips, but they don't need them for every trip, so they use them significantly less.
That bubble is 80% of the country.
The war on cars is mostly about building more neighborhoods like that.
The reason we dont have walkable neighborhoods is that we outlaw them nearly everywhere. Trying to build one requires not only planning and getting the money but changing the law where you try to build it.