I think a better question would be "when is one old?" I just turned 70, look 55, feel 30, and have no aches, pains, illnesses or physical problems of any kind. So while 70 sounds old to a 20-year-old, I cannot think of myself that way.
My maternal grandmother lived to be 102. My paternal grandfather lived to be 99. I have good genes, so I figure I'll live another 30 to 40 years, barring any unforeseen incidents.
It makes my heart glad to see all these answers on Quora of people in their 70s, 80s, and beyond. Because I used to think that at that age, you can't deal with change or technology -- but these people do and they use Quora to help those of us who will be approaching those ages soon enough.
So I want to thank all the "old" posters here and I hope that when it's my turn, I can do the same for the next generation.
I'm 99 - will be 100 in 7 months. I live independently in my home. I hear ok with aids, see 20/20 - drive night/day. I was married 70 years to the love of my life - lost her 7 years ago. I have great children and their wonderful families, but all live in different parts of the country. I'm an active member of several organizations, like to read. I had a girl friend, a very lovely lady (only 90) I met 3 years ago. She just passed away. Is death imminent? Define imminent. Enjoy life.