This is true to a limited extent. If small grocers and bakeries were allowed to setup in mixed use areas they would do a whole lot better. However sticking them an average of 3 miles from their customers in a horrible strip mall kills them.

I would happily pay a premium for having a grocer just down the street instead of having to go 4+ miles to a supermarket. Being able to get a gallon of milk and some onions in 10-15 minutes from a place just down the street will always beat driving to, parking at, and walking around a 10 acre supermarket on a 50 acre parking lot. Just the stress of dodging all the parking lot speedsters is more than enough to keep me far from that place.

That's the crux of the problem in the US. Vast swaths of land are dedicated to single-family homes (and ONLY single-family homes). You literally couldn't build a small grocery next to these homes if you wanted. And the hurdles to getting a zoning change as so high that developers just build strip malls on the outskirts of town/subdivision.

We're beginning to see some progress in the DC suburbs, with more mixed-use "village centers" being built in the 'burbs. My main complaint with these is the development is done in one pass by a giant corporate developer, leaving the area feeling very sterile (compared to an old urban downtown in a small city, which might not be as clean, but has a more organic mix of businesses). IMO, of course.

So yes, it's not that you can't have single families, and it's not really about people having cars or not, it's the density, and therefore, it's the lawns and the streets that are too wide, making the number of places that you can go to in a 15 minute walk far smaller

> it's simply not economically viable

You replied:

> t’s just that these small groceries cannot outcompete supermarkets

So you are confirming what he said.

And with Covid restrictions and work-from-home, deliveries and online ordering were cemented as normal behavior.

Uh, somebody has to deliver those orders. And in the US, that's by car (van). You might make single-car households more viable with pervasive online ordering/delivery, but you don't necessarily change the core character of the neighborhood that way.

And there's always services who will pick up bread from such locations and deliver it. With or without the bakery's backing.