Imagine your parents:

* need to use size 18 font on their phone

* refer to the phone as "that fancy music player"

* calls you when their favorite blog doesn't "load"

* every password they've ever had is "password1"

Now you want to tell them to "download this new app, generate a private key, store it as a backup somewhere. When you get a new phone, you need to re-import it"

Good luck with that.