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

https://rock-paper-scissors-n-p-p-r1-891.clarionvale.com/posts/how-to-explain-rock-paper-scissors-gambling-to-your-grandparents

Many kids discover Rock Paper Scissors as their first game of possibility and rules. It teaches fairness, turn-taking, and how results depend upon options.