...
he has a wallet but most of his btc is on a watch only address I maintain
Told him that if he would have done it a year ago he would have been a rich kid 3:-)
If that happened, you would be the rich dad, and your kid only would have a huge balance in a
watch-only address lol.
Yup. Totally true. It's like showing your kid a lot of money and saying that it's his, but he only has the rights to see it, and doesn't actually own it.