I didn't find out that I was more suited for individual, endurance type sports until I was 15 and had been placed in "flab lab." Yes, me, at the time, five feet tall, 95 pounds, failed the presidential physical fitness test, which consisted of skills like dribbling and shooting a basketball. So, twice a week, I had to sweat with a bunch of people who were really unfit, running and doing floor exercises. I remember running around the locker room, in the dead of winter.
Of course, those skills had nothing to do with the skills on the test I flunked.
I rode my bike all of the time (classic Raleigh 3 speed, Brooks saddle) from age 10-14. I did figure skating from ages 8-12. I sucked at the jumps and spins, but I often participated in contests to see how fast I could skate around the rink 100 times. That should have been a hint.
I've never done team sports, I am horrible at just about every skill required for those things. My family was very anti-competition, so it just wasn't something I would have done. Plus, there were no sports for girls when I was a kid, except ballet, gymnastics, skating. I was pretty good at field hockey, but it never would have occurred to me to join the team. But, then I moved to Florida and they didn't even play field hockey there.
I started getting active in my mid twenties, through aerobics. I also did some weight training, walking, and swimming (another thing I'm terrible at). Through all of this, I occasionally rode my bike. But basically, I was inside, at the gym until I was in my late forties. I did start x country skiing, in a very wimpy way when I moved back here, and I was around 38.
My DH used to play golf and tennis, and he was good at both. He stopped golf years ago, because it took time away from the family, and he stopped playing tennis when he developed a neuroma, had surgery, and didn't want it to get hurt again and interfere with riding.