Billions of people in the world live without cars. The possibilities of this don't need to be explained since they are actively occurring across the world. Within America there are ~10% of household that do not have a car. https://usa.streetsblog.org/2021/10/22/u-s-cities-have-more-car-free-households-than-you-think This is a good thing btw, and it should fully demonstrate that such a life is absolutlely possible, and could be improved and expanded.