Just setup a wallet with my 10 year old using nostr:npub182muyyy9yjmarsw9shcfcxm7r984uleztfdmj3ln0rs8f46wnklstahf3j and cryptosteel.com as a physical wallet.

We then imported his 12 words to Green wallet and observed the addresses are the same.

Awesome product cryptosteel and a very good exercise for kids to understand wallets.

Now he can safely self custody his own bitcoin 😉