I must advise all you youngsters of a salient fact.
There is sex after 70.
This can be good news or bad news depending on your - ahem -disposition!

I speak as a 73-year-old High Priestess! You've got to have some age and wisdon to be eligible for the office!
 But believe me you need not be spry! Supple, yes.
Agile helps. But spry? no.