this basic question gets downvoted on any forum you'd think of - husband/wife has large amount of money in crypto, they die due to unforeseen circumstances(or even foreseen circumstances but it's a quick degradation of mental facilities). who does the spouse approach for the crypto? they have proof of death so why don't they get the money? poof, value gone - have fun now you're a destitute relative coz you can't figure out passwords(most grieving relatives can't)!
this is why no one trusts crypto,these simple things aren't a fundamental part of the platform. you get people telling you these convoluted solutions(that may or may not work). the fraud potential is sky high. is crypto only meant as a transient toy?