A few years ago, prior to our move down here, we invited two widows (lets call them Anne and Jane) to share our Christmas lunch.
The first to be asked, Anne, was the younger of the two - I said I would go into town and pick her up as she considered herself too old to drive the 8 miles to our house.
When I asked the second lady, Jane, and told her I would also collect her she accepted the invitation but said she was quite capable of driving and would also bring Anne.
Jane has always considered age to just be a number and nothing to do with how she feels.
Anne turned 80 this year and is, unfortunately, now in a Rest Home whereas Jane, who broke her hip last year and is now 92 is still living in her own home and woe betide anyone who calls her old.
I am sure it is their respective attitudes to age that has made the difference.