Everyone should self custody.
I don't see grandma handling keys, lots of people will have bitcoin in some multi-custodial bank.
Discussion
If grandma is responsible enough to hold cash instead of leaving it all in the he bank, she's probably responsible enough to self custody her Bitcoin
What about the grandma that is not responsible?
nostr:nprofile1qqs9mvjd9uym8ey4w5vevlrxqfesm666cm6su27svcwqfvj8ztvhlgspzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhgqgkwaehxw309aex2mrp0yhxummnw3ezucnpdejqsg4n4t even grandma can handle bitkey. It’s seedless.
Form the bitkey website, now go explain 2-of-3 multisig to grandma... (Not saying it's not an awesome idea)
"One wallet, three keys
Bitkey’s 2-of-3 multisig setup is built into every wallet. You hold two keys: one on your Bitkey device and one in the app. A third is encrypted on a server and can’t be used without one of your other keys. That means only you can approve transactions, and you’re never locked out—even if you lose a key."
Lol she doesn’t need to know, just like you don’t need to know TCP/IP works to use the internet.
She can just get the device. 1 min to setup and ready to go. You can help her add you as a trusted contact and beneficiary later.
Use the device and you’ll know what I’m talking about.
That's a fair argumen about TCP/IP, you are slightly persuading me lol