Who knows if bitcoin would even exist anyway 'in the far distant future'.  There could be something that comes along that will make bitcoin obsolete well before all the coins are lost due to death and not transferring the private keys to any survivors.

You couldn't exactly call me crypto rich, but I keep every coin I have in a hardware wallet, and the seed phrase is written down and stored away securely.  If I should die unexpectedly, anyone going through my personal effects would be able to *hopefully* interpret what they're seeing and gain access to my coins.  What I haven't done is tell anyone specific what to look for, and that's something I should probably do.  I'm relatively young and don't expect to die suddenly, but you never know.