IS this the "farmers wrench" you are referring to?As a member of baby boomer generation I learned a lot about maintaining everything from cars and trucks to construction. I passed that knowledge along to all of my children so they would be self sufficient. Unfortunately we now have an entire generation that unless they grew up on a farm don't know one end of a wrench from a screwdriver. Votech was a big thing when I attended high school. That's where I learned to weld and electronics; two things that helped me get jobs and a career as a Diagnostic Imaging Engineer.
I recently repaired my wife's BMW 328i for $25. The dealership (150 miles) would have cost me hundreds.