By "can't" I obviously mean that it's impractical not literally impossible. Of course you can technically walk to anywhere that a car can go and more places besides.
The point remains. People buy cars as soon as they can unless the built environment forces most of them not to (e.g. London, NYC, Tokyo).
Even in London most people buy cars as soon as they have a family unless they're skint.
Habits can change and transport habits will very likely change in near future (course of a human lifetime).
Already, for a few decades now, more humans live in urban settings rather those that live outside city bounds - the rising trend is for more energy efficient urban transport, in non US setiings that leads to improved mass transit and cheaper rates for lighter vehicles.
> Of course you can technically walk to anywhere that a car can go and more places besides.
The point remains. People buy cars as soon as they can unless the built environment forces most of them not to (e.g. London, NYC, Tokyo).
Even in London most people buy cars as soon as they have a family unless they're skint.