FWIW, I grew up in rural nowhere (population 150, nearest town 45 miles away) - and I honestly don't know how anyone can live out in the boonies without a car. Taking the bus that goes 3 times a day is one thing, needing to move stuff is another thing. I mean, obviously there are plenty of people that do manage - but sooner or later you'll become completely dependent on others for certain types of transportation.
Also, there's clothes, house maintenance, and lots of other things.