When my son was a H.S. sophomore (more than a dozen years ago now) two other parents and I taught a Saturday class on roadside safety and basic auto maintenance. Things like changing a tire, checking your tire pressure (we were way ahead of Obama), checking your oil, coolant, washer fluid, etc., and basics like that.
The level of ignorance was astounding, even among the macho, football-playing, pickup-truck-driving boys. I had mothers come up to me after the classes (we took two Saturday AMs) and thank me profusely because “my husband couldn’t teach that”.
I tell this story, because youve obviously encountered grown up versions of some of the kids who *didn’t* take our class.
My best friend in HS bought a VW bug. First thing his dad did was tell him to change the oil and flush the radiator.