STRONGBOX
The need for this one came about from personal experience... always the best way.
Until the digital age you'd an envelope with 'In the event of my death' written on it (and you can see we're shooting for the next big thing amongst Gen Z here), if indeed there was anything at all. My father, who used a PC, had both one of these and a file on the PC with banking details along with passwords and so forth. His Facebook page stands as an overgrown monument to this day, none of us having the password for it.
My mother passed years later, tho' never used any digital device save an iPad that she had and never really learned to use anyway. We lost the password for that and despite Apple's entreaties, it looked (and was) easiest to throw it in the bin. There proved to be accounts however for things like landlines for which without either the password or the account holder in person, were never to be closed.
We all thus live on in digital form, our various accounts, forum exchanges and social media pages echoing down the ages. And thus it seemed that a place where all these loose ends could be tied up ~ and guarded by a suite of faces only friends or relatives would recognise in order to access ~ might be an idea.
Well that's made your morning, hasn't it?
Nonetheless the population is set to age, nowhere moreso than in places like Japan (though the UK is not far behind). And yet the world designs devices only for youth. Which I sympathise with, incidentally, as they'll be paying the taxes to support us in our senility.
Personally I wouldn't mind a digital strongbox sat on my desktop myself, a place where I could store all of my digital secrets knowing the relatives would recall in horror after my passing and call the priest in to exorcise it.
How about you?