Just watching a crime documentary, and the murderer was a 56 year old woman. The Cop talking to the camera, was saying how he couldn't believe that the murderer turned out to be an elderly lady. WTF? I'm 54 and don't feel "elderly" whatsoever. Whilst my own kids are adults, I know plenty of people in their 50's who still have kids at school!
What age do you think constitutes elderly? For me, I'd say 70+ (whilst acknowledging that many people that age are perfectly fit, well and able).