Thats nice but that doesnt work for vast majority of the United States. Cars are here to stay. People live in the suburbs you aren't going to mass migrate hundreds of millions of people.

Both things can be true?

Let me guess: single, no children? Or a full-time stay-at-home spouse if more than 2 children?

Alternatively, not the US.

Married with a 4-year-old, in the US (Chicago ). About to bring her to school on the bus in a bit.