The reason why I'm asking is that I have yet to find a feature phone or smartphone that my father (in his 80s) can use. He basically doesn't want to learn new things, and he's more interested in learning/memorizing repeatable steps than intuiting how to do things by reading text on the screen.
All he needs is the ability to make/receive calls, and easily get the bluetooth built into his car to connect to the phone. The bluetooth is a nice-to-have though.
I haven't had much luck with feature phones because he doesn't (want to) understand rocker switches or navigation using arrow keys. I also tried the "dummy" launchers on Android, but didn't get very far with him. He's also tried iPhones, but didn't get very far.
The funny thing is that he's pretty good with the Nortel phone he uses with his land line in terms of dialing favorites, etc.