Which was my point. Teenagers don't know how to do anything anymore. They can program things on their computers, set up mobile phones, dye their hair some bizarre color, cover themselves in tattoos, but they can't do simple everyday things like count change.
When I was young and well into my 40s I did minor repairs on my cars, and still do on my home.
Todays youngsters don't even know where the spare tire is, much less change the flat tire.
In a few years, they'll be in charge.