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.
Not all kids!
Some totally get it they just don't know the best way to fix the problem with money. check out Victoria Grant at 12 years old.
https://www.youtube.com/watch?v=Bx5Sc3vWefE But in all reality bitcoin is a surprisingly simple concept my kids got it very early they just don't get how important it is that a broader audience understands how important sound money is to preserving society.
the quote above holds true for the added complexity that's creeping in with things like segwit and how LN works, they just don't care.
The problem is developers are not simplifying the concept they making it exponentially more complex, the result is a narrower audience who can understand what bitcoin is and the pool of potential investors shrinks.
the bitcoin protocol should be striped down to the basics so its eazt for a 5 year old to get and the added complexity should be happening in the economy of money products.