a passwordless operating system

[🦓]

my mother is currently struggling to memorize all of my dead stepfather's
identities and passwords and that makes me wonder how would you like an
internet of hosts who store everything undeletably and barrierlessly
readably with no secrets whatsoever to humanity nor any other natural or
artificial or divine intelligence?   i know this sounds like a question for
debian-devel or debian-policy but i m dumping it onto debian-user as as of
now i m not subscribed to any other.