Maybe I'm unusual, but I live in NYC, with a grocery store a two minute walk away, a Target and Trader Joe's a three minute walk away, and a Whole Foods a four minute walk away. (and various bodegas within minutes as well)
I went to that grocery store twice yesterday (picked up a bag of popcorn and a bottle of water to go to the movies, then later some potatoes and sour cream for dinner). I'm going in a few minutes to get eggs for lunch. So three times in the last 24 hours :-)
It's not unusual, but most people can't afford to live in NYC.