You’d be surprised how for you can stretch ANY transit infrastructure. I despise the resignation that North America was “built for cars” you’ll find people-centric places all over the country, both in cities and rural areas too. The biggest issue is that a lot of rural areas lack transit service, but fixing that would be relatively inexpensive. Unfortunate anywhere without transit is inaccessible to disabled people such as myself who are incapable of operating their own vehicle, so this is something we need to work on.
Most places were built for people, not cars. But many weee, and even more were demolished for them. But saying that North American cities were designed for cars ignores much of the history of North American urban development.
Either way, if a place isn’t transit accessible, it might as well not exist. Though I must stress that it is NOT difficult to make something transit accessible.