Earlier quoted context omitted.
In city centres for sure. In the country side, the population density makes public transports more challenging. People could walk or bike or ski but that would reduce their life quality. It’s difficult to reduce your life quality unless you are forced. I don’t see country side people giving up their cars.
Most people live in urban areas. Even in suburban areas, the bicycle could be a viable form of transportation. My grocery store is literally under ten minutes away by bike, but it is essentially a nightmare to bike to because of a lack of safe cycling infrastructures.
I feel like this is a planning conversation for before the era when they decided to make US planning completely car centric and isolating, in a manner that can't be easily nor quickly reversed in a real way.