The idea is great but I don't think that is necessary though, I think the owner himself needs to be aware of his status and have some kind of protection/ backup for his Bitcoin.
It's an obligation that the owner/user needs to know while dealing
with this investment currency, he needs to observe every necessary
protections.
That should and must be the right thing to do with everything especially with this field which involves crypto where you can lose all your assets because you lose your private key and have nothing to backup.
It's the first thing in mind that needs to established once you started
dealing with bitcoin/crypto, everything should be in place so whatever
happens you are well prepared.
So it's like backing things up, the owner needs to point out the inheritance himself, let the wallets do the more important works.
That's right, everything should be done accordingly for future references.