I've lived extensively in most population densities available in the US. When you are in a very dense environment like Manhattan, people simply don't buy quantities that large from local stores, and the vast majority of apartments don't have the storage space to accommodate for the giant sized quantities that suburbanites buy at Costco every day. The end result is that living in Manhattan, Brooklyn, western Queens etc., you're basically walking every day down to local stores and lugging relatively small bags back. People in the city tend to be pretty trim and fit as a result.
I currently live in a rural-density zoned part of the US, and the car is basically the only access one has to virtually anything. Businesses here can pretty confidently state that close to 100% of their customer base arrives by car.
I currently live in a rural-density zoned part of the US, and the car is basically the only access one has to virtually anything. Businesses here can pretty confidently state that close to 100% of their customer base arrives by car.