You make it sound like all older people knew. I work in IT and most users, regardless of age, do not know anything about computers. They don’t know how to navigate file systems, they don’t know where they saved anything, they don’t even know what the recycle bin is sometimes.

I once had a user plug a power strip into itself and then didn’t understand why there was no power.

Hell, they don’t even know how to read. I lost track of how many times I had this conversation:

“There’s an error message on my screen.”

“What does it say?”

“I don’t know.”