To be honest, this doesn't seem to be a phone for children or the elderly (neither of which have some sort of cognitive short circuit that keeps them from grasping a simple Nokia while allowing them to embrace the idioms of this particular phone) -- but rather a phone for hipsters who need to very loudly announce that they don't have an iPhone.
"John's Phone: It's not an iPhone or anything. You've probably never heard of it."
My grandmother couldn't figure out how to work the new radio we got her - which just had two giant large dials. We got her a dead-simple cell phone and it was never used.
One thing she does know how to do is use the 12 button landline phone thats mounted on her wall, and this looks exactly like that and works nearly exactly like that. This would be perfect for her.
Except for the two small switches on the side, having to charge it, and having to push pick-up and hang-up instead of lifting and replacing the receiver.
Maybe we could get her to drop it in her keychain bowl when she comes home, and outfit it with one of the charging pads.
(disclaimer: I'm culturally close enough to the people here to get to say that ;) )
The thing is a rock.