A funny story; RuneScape has not only taught me a lot about economics, but I remember specifically in 6th grade, my teacher asked us if we knew anything about cowhides/armour.
Fyi, this was my history class. I was going to raise my hand, but then I gave it a second thought and thought to myself, 'Ah, that's probably just a game and not how they really make armour.'
Long story short, I missed my chance in 6th grade to sound like a genius.
Nah, I'm just kidding. But seriously, RuneScape has taught me a lot throughout the years. Best part of it all were the typing skills I picked up from the time I was 9/10 years old and the countless hours I've spent playing some stupid game that my parents despised of as they thought I was wasting my life.