You scout for a warmer place to spend the long, cold winters. You are no longer 'promising'. Younger men ask you for advice. You work on your short game. Youthful injuries return with a vengeance.
Youthful indiscretions harden into bad habits.
You shop for health insurance the way you once shopped for a new car. A 'late night' now ends at 11 pm. You learn where your prostrate is. You develop a knack for wearing hats. Your pants pockets are further apart.