Eateries can adapt though, as they adapted to commuters.

It hasn't always been the case that all eateries were only in major city centres. For a long time there were local cafes in small town/village centres that today just don't exist because there hasn't been anyone around in the day to eat at them.

I like the idea that we may see a return of more local cafes/restaurants (at least I see this being possible in my country), but I'm not sure how likely it is given the smaller turn over there's likely to be.

When I worked in an office there were often food vans that drove to each car park offering lunches. If they improved the lunches they offered I could also see something similar to this in suburban areas.