Today it occurred to me I rarely ever hear anyone refer to their grandmother as Grandma. It's Mimi, Grammy, Yaya, Gigi, Nana, and a host of other words. I started to think about this, and I guess the answer is pretty easy. My grandmas were old with white hair in a bun. They looked like grandmas. Today grandmas are still wearing jeans and acting young.
Ironically, I think women are older today when they first become grandmothers. They are waiting later in life to have children, thus becoming grandmothers at 60 instead of 40.
Whatever you call them, grandmothers are great.