I would rather buy grocery once a week with a huge load put in the trunk and drive back home, instead of buy a little bit every next day and walk home carrying the bags. I don't want to carry a gallon milk or a Watermolen, or push/drag a cart on the street.
I think people who envy this kind of environment just don't know how inconvenient it is for a working family with a few kids. But it is kind of OK if you live with grandpa / grandmom, who will do grocery almost everyday, or if you don't do grocery just eat in restaurants or buy food online.