When I was a teen, I couldn't have explained (in any detail) how a car engine worked either. Five years later, I'd quickly learned in order to keep my own runni

When I was a teen, I couldn't have explained (in any detail) how a car engine worked either. Five years later, I'd quickly learned in order to keep my own running. Those who need to, and have the time, will figure it out. If they are clueless, that's good. There are much more important things a teen needs to learn.