[IfOnlyYouKnew]

They walk...

Check Google Maps for some representative distances (i. e. picl some apparment building, then map the route to the next supermarket, doctor's office, etc).

You will have a store within 500m for the vast majority of residential buildings, and often within 200m. The closest bus stop should also rarely be farther away than about 150m.

Wheelchairs and electric scooters are used almost exclusively by paraplegics, not by, say, elderly people with arthritis. Having far lower obesity rates compared to the US helps.

My impression is that car ownership is exceedingly rare among the elderly, below the already low 30% of households owning cars.

But these pedestrian areas don't make too much of a difference: they tend to be just single streets, so you can always park on the parallel streets and walk just one block.

[toomuchtodo]

> They walk...

My grandmother is 90, and is unable to walk more than a few feet at a time without being in debilitating pain from advanced arthritis and her being too old for knee replacement surgery. These are the edge cases I'm interested in, especially as the first world rapidly ages and the number of people in the population with mobility issues increases. If the solution is exceptional accessibility for wheelchairs and electric scooters, perfect!