When I was a kid, it took me longer than I would have liked to learn how to ride a bike. I kept using a bike with training wheels and I didn’t practice much, so of course I didn’t learn how to balance.
One day I observed that my sister (younger than me by two and a half years) was getting close to figuring out how to ride a bike. She wasn’t quite there yet, but she was clearly much closer to balancing than I was. I couldn’t let her beat me to it!