It trully is a waste of time. They will never understand it. Kids and teenagers don't want to hear about how a currency works or any of the details, they will find it boring, they can't be bothered, most adults can't, let alone kids and teens, let's just focus on making bitcoin work as expected by casual people.
Kids may not like but teenagers want it as they need money and they now cannot spend any time without money as nowadays the needs of them are more higher for buying their needs and especially for their educations and for other uses.