What is worse is when you help someone who is completely computer illiterate with something super simple (like copy/paste) and then they think you are some sort of computer virtuoso and demand you help them figure out every simple, small problem they have until the end of time.

I know my way around a computer fairly well, enough to do your average every day stuff as well as build my own computer from all necessary parts. I'm not the God of Computers or anything, but I do well enough. I can't think of anyone off the top of my head that has difficulty with computers despite working on them frequently. My grandmother, maybe, but she knows how to do the basic stuff. If a problem occurs that makes her computer do things it isn't supposed to do, she is completely lost though.