Most people don't understand the risks beyond "I can get hacked" and because they don't understand the how or basic counters they treat it like a freak weather event that can't be forecast.
You can designate people who can access your Vault, after a certain waiting period. If they request access prematurely, I can revoke it during the waiting period.
There are written instructions for my next of kin on what to look for in the Vault.
The main difficulty is if my next of kin forget their LastPass master password.
I’ve been thinking of distributing a key via a set of USB stick using Shamir’s secret sharing, with written instructions to use them to recover a backup of the Vault kept offline… but have not gotten around to this.
It can happen less obviously too: I've seen it internally where two channels merge: someone sends an encrypted file as an attachment and the password view Skype-for-business, but the Skype conversation is then archived and accessible in the same outlook account (at least not in the same folder, but someone who gets access to the account and scans for credentials will find it and know where to look for the payload).
I wish the user of PKI had become easy enough to take off generally, though that only really solves the transmission problem: you still have potential issues with people managing passphrases/passwords for their private keys.
"One of the most obvious flaws in using blockchains for anything involving regular human beings is one I've not seen much discussion of:
Regular human beings cannot protect their passwords, credentials or private keys.
They just can't."
I guess I'm not a regular human or I wouldn't have an AWS dev account, but I still hardly feel secure w/respect to the continuity of my various digital assets.