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

https://rps-gambling-s-w-l-s2-890.northcrestbrief.com/posts/the-top-reasons-why-people-succeed-within-the-rock-paper-scissors-industry

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