Agreed. I took shop/tech classes in high school. Back when they taught such things. Worked summers in the bus garage for extra graduation credits.
After high school graduation. Tech school in StLouis Mo. Working at auto shops while attending classes. Gdradated, then back to Michigan. Viet Nam and Uncle Sam wanted me for helicopters. Then extension classes at local SE Michigan colleges into the eighties.
Holley had courses back in the seventies. As did several of the engine parts suppliers. Attended everything available.
Then there is the School of Hard Knocks.