CAMARADERIE was drilled into me at the United States Naval Academy, and I’ve played group sports all my life. So when I moved to a retirement community in Annapolis, Maryland, 15 years ago, I was pleased to learn they had a croquet team. Croquet is a sport that’s blind to age. It’s a game of skill, strategy and patience. You can always refine your grip or your swing, but no number of push-ups will make you a better player.