It ignores the problem of people with difficulty walking, for whom 400 yards is a serious burden, and significantly limits their access to buses. And then think about bad weather, slippery ground, etc.

Many of these people have no other options: If you are elderly or physically limited when you are younger, there's a good chance that wealth is limited, rideshares and taxis are not an option, and if you can't take public transit, you are stuck at home.

Don't think about it as 'today I can't take the bus'. Think about it as, 'for the most part, I can't leave my home/block anymore'.