realistically, the end point for moderately tech savvy folks is going to a be two-device setup. one cheap phone for basic communication , all the corpo stuff like banking and shirt-and-tie social media + a wifi hotspot. then a second "practical use" device that uses the hotspot, that you fully control and do your tinkering with.
edit: coming to think of it, teaching people to have a device for the "clean stuff" and separate one for the "stupid stuff" could even turn out to be a benefit.
edit: coming to think of it, teaching people to have a device for the "clean stuff" and separate one for the "stupid stuff" could even turn out to be a benefit.