Teach them the basics of how combustion engines work and basic repairs on vehicles and small engines. Too many people don’t have the confidence or competence to fix their own stuff. It’s like a language, if you have the basics down, you can think through how to fix things in a pinch, even if it’s something you have never done before or you don’t have the conventional means for repairing something available.
Discussion
Thanks for the exponential advice! Planning to introduce fun mechanics along the way!