there are some pretty wiley elderly people out there i'm not sure if they aren't made of rubber.
this will be me in 50 years time and i'll be damned if i'm gonna die younger than my great opa (98)
yes, they have eyes in the back of their head, wit, mind reading capabilities, and skin like leather, no glasses. it's possible. my great Aunt only stopped playing tennis at 95 because they make them sign up online. not that she can't use the computer, she totally emails and such, but more because it feels silly tapping a check box on the schedule when you're used to just showing up on the court.