If my memory serves correctly, I lost all 4 of my grandparents between (my) age 12 and about 22. And they were all mid 80s to mid 90s. I miss them, so continue to enjoy them!
That's a short window, in which to lose all four, Geoff, but it's nice you got to know them all and they had full lives. Both of my grandfathers died in their 80s, in 1969 (before I was 5) and 1993 while my paternal grandmother died at age 92 in 1990.
I should add about my living grandmother that she had a cousin, who died in Illinois a few years ago, who reached the age of 110. But she didn't smoke or drink like my grandmother.
