Securing your private key is quintessence here, but there are some issues pertaining to your private key security what if something happened to you? How can you hand it over if you are already dead, right? These topics are relevant on how to transfer digital assets to your next of kin. I have read about “Coinbase” having this custodial service, in which they will hold your private keys. If ever something happened to you or in case of any fortuitous event (leads to your death). They will protect your keys until such time your legal heir(s) can provide legal document, e.g. death certificate and/or your will to transfer your digital assets.  I think it would not fit to what bitcoin is all about, for it is anonymity currency. Inheritance of digital assets remains a top topic today and securing your private key is the tailback.