We shouldn't have to completely upend our lives to move to the small handful of major cities that provide the infrastructure to exist comfortably without a car. At least in the US, your options are limited to NYC, Chicago, Boston, and maybe a few others (Seattle/SF). And even then, the hard set default in these major cities is car ownership EXCEPT for NYC.
How is Bumfuck MT, population 250, going to support the infrastructure to live comfortably without a car?