In the movie, there is a blending of younger and older generations and the benefits reaped because of that partnership are obvious- youthful enthusiasm, ambition and energy meets clarity, wisdom and gratitude.
I think Leon Eldred summed it up well when he said, "If I'd know that I was going to live so long, I'd have taken better care of myself."
With good health, a positive attitude and a continued curiosity about life, getting older never gets old.