Eric Schwitzgebel does the math, interprets the lessons:
(This past Hannukah, my daughter Kate and I spun a sample of dreidels 40 times each. One in particular landed on shin an incredible 27/40 spins. [Yes, p < .001, highly significant, even with a Bonferroni correction.]) [….]
You can, if you want, always push things to your advantage: Always contribute the smallest coins you can, always withdraw the biggest coins you can, insist on using what seems to be the “best” dreidel, always argue for rule-interpretations in your favor, eat your big coins and use that as a further excuse to only contribute little ones, etc. You could do all this without ever once breaking the rules, and you’d probably end up with the most chocolate as a result.
But here’s the brilliant part: The chocolate isn’t very good. […]
Dreidel is a practical lesson in discovering the value of fairness both to oneself and others, in a context where proper interpretation of the rules is unclear, and where there are norm violations that aren’t rule violations, and where both norms and rules are negotiable, varying from occasion to occasion — just like life itself, but with only mediocre chocolate at stake.
I tend to think that early exposure to randomness (at low stakes and without a skill element) can supply more than one important lesson for children. But I like this lesson best: the benefits of fairness usually trump the benefits of unfairness.