But those food delivery services would employ part time wage workers.

This problem is usually sidestepped by the argument that teachers, policemen, sanitation workers, etc, can't live in the communities they serve and that that's fine as a result of a wider services market, better transportation etc, etc, etc.

But at some point you do have to concede that most of the people driving their beat-up 1996 Hondas to bring you fresh sashimi aren't valued in the six figures - and you have to acknowledge and design for it.