It takes very little empathy to realise that driving a car is a huge technical barrier compared to a wheelchair/scooter/just walking slower. There is no reason you need to be healthy to avoid car use... except one. That motorists will kill you if you don't quickly get of out their way. I've seen large parts of my local area become completely inaccessible to the less-abled because of fast roads, so can it with the "I'm thinking or the sick!". You're not.

Or to just go look at which cities are not color-coded into mansions and slums, and notice those cities are ones where the poor do not need to maintain their own expensive machinery for basic tasks. Because ... again, I don't believe I need to explain that. It's a deliberate choice you're making to not understand it.

Society (cities) would quickly re-orientate themselves so work wasn't so far away from home. So shops weren't on the outskirts of town.

Your argument is predicated on cars existing. On cars causing the problem you suggest they solve.

The standard social hierarchy is: walk everywhere -> bike everywhere -> go by motorbike everywhere -> drive a car everywhere.