LBT: "IT support sandwich generation" stings. I'd never heard the term before but it's perfect. People older than me can't use computers because they're recalcitrant jerks who take actual offense at having to learn something that entered existence after 1980. People younger than me can't use computers, because tech companies abstracted all the actual using of computers away.
My aunts can't use computers because they object to having to learn how to use them. My son's looks blankly at me when I tell him to share a file, because iPads don't *have* the concept of files.