All this to say: there are ways to keep evolving how things are usually done.
And from a societal perspective, saving on commute time/expenses but with $15 bagels is still better than wasting 2+ hours/day, additional car expensises, and only a $7 bagel.
A huge bagel store will use humans more efficiently than a small one.
One big problem with "lots of shops" is that they require lots of retail workers, workers who spend much of their paid time not working. Prices reflect that.
It's unclear to me why urbanists think that wasting humans on retail is so important.
Cities don't have much of a reason to exist, at least not in their current form, with WFH.
Are you assuming people would rather live in suburbs and countryside then? I would definitely still live in the city, and my first thought of offices closing was "great, more space for residential buildings".
It's much much cheaper to live outside of major cities. As mentioned elsewhere in this thread, office buildings are a massive source of tax revenue for cities.
This is the entire reason you have this push to bring everyone back.
Ideally, people should be able to live where they want to. If that is in a city, great, otherwise they can live elsewhere and work from home. I don't see any great benefit in forcing people to live where they do not want to be.
Isn’t that just an instance of the broken window parable? There’s nothing to prevent the bagel shop locating adjacent to a residential area instead of an office park - then society sees the benefit of WFH and tasty round breads.