Lots of kids find out Rock Paper Scissors as their very first video game of probability and rules

https://rock-paper-scissors-gambling-k-j-u-e0-689.evercolumn.com/posts/13-things-you-should-know-about-rock-paper-scissors-gambling-that-you-might-not-have-considered

Lots of kids find out Rock Paper Scissors as their very first game of possibility and rules. It teaches fairness, turn-taking, and how results depend on choices.