80% of the US population lives in urbanized areas according to the Census bureau. And the density of the census tracts most Americans live in is rising.
And it is possible to have walkable and transit oriented rural areas. Much of the rural US initally sprang up around dense market towns and railroads.
> To qualify as an urban area, the territory identified according to criteria must encompass at least 2,000 housing units or have a population of at least 5,000.
https://www.census.gov/programs-surveys/geography/guidance/g....
Some cities are doing this, but they're not the ones attempting 15-minute cities.
The 15-minute cities are doing things like putting up barricades to make driving more of a pain, without actually making them more livable in those confined locations.
Examples?
I live in Europe, 15-min cities are quite standard here so I don't really grasp this American issue.
Have internet and work remote.
Little farm and grow some of my own food.
Use solar and wind to power my EV Ford-150.
https://www.nar.realtor/magazine/real-estate-news/survey-buy...
Maybe that would change if US cities were, you know, livable?
Europe is the "west" too, and the cities are a far cry better for people.