For every grandparent with an iPhone, there are countless others who only know of Apple as a type of pie filling. My maternal grandparents have little in common, aside from a European ancestry and their current status as members of the octogenarian club. My grandmother is a hairdresser, a wonderful baker and a devout Lutheran, while my grandfather is a retired engineer who keeps to himself, speaks a handful of languages and stays up-to-date with Rush Limbaugh.