I've never lived anywhere where taking a school bus was predominant other than the short bus.
we moved around a bunch, but I think the longest walk I ever had to grammar school was 6 blocks; shortest was 3. junior high was a 1 mile walk, but I'd usually meet up with my friends 2 blocks away from my house and we'd walk together. ditto on the walk back home... nearly all junior high drama occurred on the primary walking path that everyone from my side of town took to get there.
I went to high school in the city. had to take a train there... I'd occasionally take the bus to the train station, but most days, it was a lot easier for my mom to drop me off on her way to work. it wasn't out of her way and it shaved off an hour from my commute thanks to all the stops that the bus would make. coming home, I'd either hitch a ride with her back, take the bus, or take a cab if I had the money (it was 5 miles between our house and the train station)
the town where I used to leave was so ridic, though. the town was 0.8 square miles and the school was in the dead center. and yet, every single morning, there'd be a line of cars surrounding the school with parents dropping their kids off.