I live in a suburban area of Columbus, Ohio.
- To the nearest convenience store: 1.5km
- To the nearest chain supermarket: 3.7km
- To the bus stop: 450m (this bus runs once per hour)
- To the nearest park: 1km
- To the nearest library: 5.5km
- To the nearest metro train station: 195km in Cleveland, Ohio (Columbus is the largest city in America by population that has no passenger rail service)
- To the nearest intercity train station (Amtrak): 162km in Sandusky, Ohio (This comes through once per day at around 3 or 4 am)
You also mention you can get somewhere within 10 minutes of walking. A lot of Americans will refuse to walk that far. For many people in the country and the suburbs, the bulk of the outdoor walking they do is to/from their cars and to get the mail.
It's hard for Europeans to understand, but nearly all American cities are built around the concept that everyone has their own car and drives everywhere to get around. Even things that are 5 minute walks, Americans will get in the car and drive to. Mass transit (again in most cities) is coded as "for poor people who can't afford a car", so it's always difficult to use and is much slower than having your own car.