When is it we stop being middle-aged and begin being OLD? Certain criteria don't count. For example, unbidden peeing. That can happen any time, especially if you've had children. Memory loss doesn't count either. Besides, who can remember what they got for Christmas when they were twelve? Or what they had for dinner three nights ago.? Or who is the president? Everyone knows it's Harry Truman. And infirmity can happen to anyone. I continue to trip while going up the back stairs when I'm wearing my Tevas. It's because the toes are too long, not because I have poor proprioception. So my arms that are covered with bruises are a natural side effect.
Seeing a wild animal in the yard would count. So far, I've seen Felix, the katz and occasionally a raccoon. An urban raccoon. I mean by wild a giraffe or a rhino or a sloth. Well? And while I do wear my pajamas far into the day, I haven't yet worn them to the store or on my head.
I still dye my (white) eyebrows. I take showers frequently. I have most of my own teeth. My bifocals are 'invisible'. And they're not trifocals.
So when do we/I reach the magic oldness?