Add to that the frustration that Mom or Dad can spend an extra couple minutes chatting with the bus driver while a line of traffic waits.
In my day, Mom and Dad were off to work and the kids were expected to walk the quarter mile or so to the nearest bus stop and catch it themselves. Which we did.
It didn't take us long to learn the trick of setting up a telescope in Mom and Dad's upstairs bedroom so we could see when the bus was getting close. That saved waiting outside longer than necessary in the North Dakota winters of sub-zero temperatures.
There were fun times as well. Last day of school, squirt guns were allowed on the bus. During my senior year, I placed a bucket of water by our roadside stop to soak a girl who had always got the better of me in those years. Not hard to do when she sat by an open window. No school district would pay for air conditioning to use for only a few days in late May/early June or late August/early September.
They could've suspended me from riding the bus for that stunt, but it was worth it!