It is much easier to live auto free if your body is able. For some, including myself at some points in my life, walking to grocery etc, is physically impossible. Some people are able to stay mobile and not housebound because they have cars. This is true even if they have walkers and wheelchairs and oxygen tanks and ankles and knees that do not work correctly.
And God bless those who can walk distances and bike distances and carry groceries, etc. It's just not feasible for everyone.