i have been paying my kids pocket money out in sats for like a year and when it gets high enough, i move it to cold storage.
But I think it's going to be time soon to teach her about managing cold storage, learning about on chain, swapping with boltz etc
What's the easiest hardware wallet she can start with? a bitkey, maybe?
plus i always have the fear that if i randomly drop dead, someone will need to at least know how to move btc around on chain and be comfortable with it