Well, my mom manages pretty well with e-mail and such, but she's ahead of the curve on such things. My grandmother on the other hand is pretty fascinatingly bad

Well, my mom manages pretty well with e-mail and such, but she's ahead of the curve on such things. My grandmother on the other hand is pretty fascinatingly bad with any electronics. She teaches English, so she doesn't have much trouble reading the stuff on the screen, it just seemingly doesn't make sense to her - any hierarchical menu or any sort of context input confuses her. Things we would describe as simple, such as programming a channel on a TV or adding a contact in her contact list on her phone are nigh-impossible tasks for her. Anything as complex as moving a mouse pointer with a mouse or typing on a keyboard is completely beyond her abilities. All of these are basically "spooky action at a distance". You move something here and something completely unrelated changes there by way of magic. It's no wonder people who've never even seen such things for 50 years or more don't have the mental model to understand them.