Twice. 

I find getting old is when one reads the obituary's first before the crime news in the paper.
Everyone wants to live to be 100 but there are things that they do not know. This is no fun.
There is no one left to reminiscence's with about the old times of youth or perhaps even 60 years ago. Children had passed on 20 years ago, grand kids are in their 60's, great grand kids in their 40's and have forgotten about you, nothing in common.
What and why would anyone want to live so long everyone they loved had died and left them behind ?