- I learned programming through an in-game (Star Wars Galaxies) scripting language. That little bit of experience automating repetitive tasks set me up to excel in high school and college programming courses, which led to a career in data engineering, and now AI and robotics.
- I was introduced to game theory by a prisoner's dilemma situation in a video game (KOTOR).
- I learned economics and market forces by trading on Runescape's Grand Bazaar, and how to model and optimize a production system by managing a little island kingdom.
Not only did I learn new subjects from these experiences, but learned that I could excel at and have fun giving them my attention, on my own time and for my own purposes, without the external pressures of grades and tests. This gave me the confidence and energy to pursue them more deeply in school.
One thing that's interesting about all of these experiences is that they were all multiplayer and extremely social games (KOTOR, while a single-player RPG, was played with siblings and friends). I suspect that the social aspect was a primary motivating factor, and wonder if that principle holds for the broader population. I certainly wasn't the only kid in my class trading on the bazaar to get some extra GP.