RPGs have dramatically improved my ability to perform statistics, probability, algebra, and understand fractions.
This is actually totally true. Vidya games basically teach my kids everything from reading, to math, to economics, to physics, to history. I have never sent my kids to school, entirely replacing their education with vidya games and murdering things in the woods. The difference when compared to other peoples' kids, or hell, even other people, is absolutely striking. In this one game, for instance, there is this mini-puzzle that other people seem to really struggle with, whereas my kids seem to consider it a non-issue and when assigned to go grind that mission, never even brought it to my attention as something that was worth mentioning. From this and numerous other examples, I conclude that most people are dumber than a 6 year old.
Of course, as a result, they also have no friends, being unable to relate to other kids, who play games like filthy casuals instead of understanding the principles of min-maxing and DPSes, reasoning silly things like "I'm going to equip this weapon because it looks cool and is new and has a big number for its damage" rather than the way my kids see it, which is "I'm going to keep this one because it has higher DPS".
Also, games aren't supposed to be fun. If you're still having fun, you're playing it wrong: The purpose of a game is to optimize the fun out of it. Remember, Dwarf Fortress teaches us: "Losing is fun". The corollary to this is that FUN IS FOR LOSERS, so STOP HAVING FUN.