> The density of single family houses doesn't support a corner store. It did before the automobile/streetcar, but now that those are common people will prefer to travel to to the much cheaper big-box store (which also has more selection) for most purchases and that doesn't leave enough "I just ran out of one thing" to support a corner store.
Yet somehow, I've seen the exact same kind of suburban structure in a lot of Middle Eastern, car heavy cultures. Lots of single family villas packed together, often around a common area with a park, a medical center, an elementary school and a small shopping area adjacent to the park for small retailers and food outlets. The outlets and retailers often have a loyal customer base of people living nearby, the people enjoy the convenience of not having to take their car through a busy road just to buy groceries, and the food outlets enjoy the guaranteed patronage of visitors to the park. And these are households with multiple cars, not just 1 or 2.
For bigger purchases sure there are bigbox stores, but very few go there and buy - it's all done online with a few clicks and delivered to your home for free.