Can that even be defined if it completely overlaps the umbrella of "people who use computers but are not IT professionals".
One of my friend's passwords for everything is expl0r3r and has been for years because his family drove a ford explorer when he was younger.
Another buddy's password for everything is "Duncan" ... because his dog is named duncan.
Pretty much everybody else I know has their password literally stickied to the side of their monitor or sitting on their desk somewhere.
Can "Security Fatigue" really be a thing if the entire world is subject to it?