I think sometimes people end up in some activity because they accidentally had a defining moment of fun with that activity. Their mind was in the right shape at the right moment and something clicked. It can happen at any age, but I’m not sure you can engineer it. I still remember exactly how math clicked with me as a child—what time of the year it was, what the room looked like, etc. The same with guitar when I was a teenager—I was watching someone play and I even remember the exact chord when my mind went click.
I think sometimes people end up in some activity because they accidentally had a defining moment of fun with that activity. Their mind was in the right shape at the right moment and something clicked. It can happen at any age, but I’m not sure you can engineer it. I still remember exactly how math clicked with me as a child—what time of the year it was, what the room looked like, etc. The same with guitar when I was a teenager—I was watching someone play and I even remember the exact chord when my mind went click.
I think this is worth being one of the answers.