The ones I could remember are her struggling to understand how to expand notifications in order for her to delete mail, rewind tracks, share and also getting her to uninstall apps. I would have forgiven her ignorance if it weren't for the fact that I downloaded her the free Android KitKat book guide for her to read and it showed about expanded notifications.
The good thing is that all those issues can be fixed through software or training. No one is born with the knowledge on how to use a smartphone, and we all have to start from somewhere. Perhaps in future versions of Android beyond KitKat (4.4), Google will implement features that will make it even easier to use, no matter what background the user has.