The topic was not major cities. It's rural areas. It's very unrealistic for them to be expected to be even as dense as one in every two miles, when in many case

The topic was not major cities. It's rural areas. It's very unrealistic for them to be expected to be even as dense as one in every two miles, when in many cases there might only be four houses or less in a one mile stretch. It seems unlikely that people who are physically unable to drive would be walking that distance or using electric tricycles. I would think that what is going to be helpful for these people is grocery delivery service. Also, children are not typically expected to be responsible for grocery shopping.