I agree... 60 is definitely not old, esp. for someone who is as energetic as you.
I was driving back from the gym this morning and saw a group of four riders, slowly making their way up an mild incline. As I came up to them I saw the three men and one woman couldn't have been younger than 70, probably closer to 80... in matching yellow t-shirts and on road bikes, too!
I honked and gave them a thumbs up when I passed.
Cycling keeps everyone young!