Do you know how everything in your house works? How to repair everything? No right?
Would you be brave enough to mess with the grounding of your house, or the AC or the heaters, the washing machine, the doors? Not eveyone wants mess with every (subsystem) thing in their house/live"
Most of the people I know want their PC to work and if somwthing goes wrong they just send it to repair or ask somebody else to fix it, they don't wanna do it themselves, which I find normal, they have little to no interesting in PCs, and that is compleatly fine.
And before someone says "Yeah, but the computer won't kill you if you fuck up the fixing or messing, let me tell you, a "sudo rm -r" or "sudo chown -R" can fuck you system BAR, making you loose important data and info.
-...But refugee -I hear you about to type-, they SHOULD have 10921 back-ups in atleast 2542 independent locations. Yo, they don't wanna even see the terminal, and you want them to interest themselves for data integrity and redundacy? Come on.