In my experience, these kind of people are scared of experimenting because they think they might screw something up, and the user-interface doesn't help. My dad has an iPhone, and he doesn't know anything about it. I doubt he's ever closed a browser tab, rearranged his home screen, or switched a running app by double-pressing the home button, and he has problems with the most basic of things. He also has an Apple watch, and the only functions he knows how to use on it are answering calls and activating voice messages ("walkie-talkie"). He has no idea how to sync his phone to the car's radio via Bluetooth, and he still names his contacts in his address book like "AAA Wife" and "AA Home Phone" because he doesn't know there's a favourites button. And he simply doesn't care. He just continues struggling to use his phone without really trying to learn it. My 82-year-old grandmother was better with technology than he is.

With people like this who didn't grow up with tech, everything has to be intuitive and obvious. An iPhone certainly isn't. My dad never had trouble with his Nokia, because everything was laid-out in front of him in a one-dimensional way, and all he had to do was scroll down the list and everything was easy to find. I would never put a computer in front of him, but if I did it would hb a Windows 7 computer.