At this moment, Bitcoin is anonymous enough that it would be unfeasible for example to entrust your Bitcoins inheritance. Perhaps with the development of cryptocurrencies, it will be possible to connect some of the wallets for crypto, which would allow for the transfer of funds that would be lost. Everything before us remains only for us to wait for the situation to develop.
While we are still living we should educate our family about cryptocurrency so that time comes that we gone in this world our successor will know what to do with our crypto's. Be sure that private keys are stored in hard wallet and and have a buck-up storage for safety purposes.