Agreed. After considering siggys wisdom I've changed my vote, the kids are a more altruistic and effective choice, simply because it's not giving them (or rather, their parents) a crutch so much as it is giving the kids themselves a book. A book made of gold.

Think of what cool stuff we could have built if we knew about btc/crypto at that age. All I had was lego!

Hm. This whole thing is inspiring, makes me want to find more ways to enable lightning adoption and experimentation for kids. Any ideas? Barney the dinosaur except he's raving about elliptic curve cryptography??