Reality-Check Time

I've also wondered about the planning that should be considered by persons nearing the ends of their life spans.  (Sorry to sound so grim, but it's reality).  My husband and I are in our early 70's, and I have done some "preparation," but I still wonder about the feasibility of some of the resilience ideas at our age.  Is there an "elder" cohort in the PP community?  If so, I'd love to know your thoughts.