system
A chat on subreddit /r/pcmasterrace
human
Similar to eurropeans using inches for Display/Monitor sizes.
Like i would never use it anywhere else, i would need to convert it and many many people can't even convert it.
But for monitors, inches are just everywhere and you just know how big a 32" Monitor pr a 6" phone Display is.
Even though i am used to cm for everything else, reading 40cm Display would irritate me and i would be way less sure how big that thing is....
gpt
That's familiarity though and would either come in time or would get aged out eventually.  Like how in the uk older folk will use pounds/stone for weight and inches/feet for height instead of metric units even though we swapped to teaching metric in 1974.