In some contexts having people who don’t know what files are, what a folder is, and some other basics, do lead to people dying or lots of damage done.
Of course you’d expect people in these contexts to be trained but that’s not always the case.
Also having no idea what a file is and not knowing the bare minimum of how a computer works in this day and age is unacceptable. It should be taught properly in schools (instead of teaching some very specific stuff everyone will forget, like what a bus is, and then jump to what excel is and how to use it, like they did in my IT class back in high school)