I don't say it's waste rather it's something beneficial for their future if they use it right and no matter what kinds of savings you prepared for your children when they don't know how rightfully to spend it, it won't benefit them whether it's bitcoins or fiat.

It depends on what countries because some other parents prepared lands to give to their children once they are gone. Since we have bitcoins nowadays, it's best to save them for them along with those properties because of the consistent price increase which will drastically help them achieve their future goals.