Welcome to a great forum.
My wife just turned 69, and I am three months behind her. I do a lot of fast walking, plus some cycling, weight training, and jogging. She took up ballet 50 years ago, shortly after we met as UCLA freshmen, and she still takes ballet lessons three or four times per week.
I would be interested to know the age distributions in 50+ and 65+.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069