There's definitely plenty of suburban development in the US that could support small neighborhood businesses without parking spaces, but in the overwhelming majority of the country, they're literally not allowed to exist without special permission.

In theory this ensures that any one business doesn't put undue strain on the local supply of parking spaces, but in reality I think it creates a sort of feedback loop that hollows out walkable downtowns/village centers, in favor of sprawl, where a car is required for 100% of trips (which in turn further increases demand for parking).