Eh, I live in a fairly typical midwest suburb and I don't have access to walkable groceries. But my local grocery store is about a 5 min drive.
Because I can get about 2 miles by car in that time, if I'm really honest about stop lights and such.
Too many, crossing an intersection with a traffic light makes that commute unwalkable. In my suburbia, going from one shop to another 5 doors down requires driving.