This board is dedicated for gambling discussions that involves money and not the other gambling type that you are describing which is “gambling without spending money”. I’m curious if you can give an example about gambling that doesn’t involve money that is still on topic on this board?
It’s obvious that user here will always incorporate money on gambling because money is the only way you can gamble in the casino. Without money, you are just simply playing games since it doesn’t contains risk or simply you didn’t gamble.
What about play money? Or use "a wish" as an equivalent of money ? Btw, everyone use gambling unconsciously with kids, when they challenge them in something. For example, parents often do like this "beat me in X, and I will buy you a toy. but if you lose, you will have to wash dishes". This is gambling+motivation and there are no money involved. An on the other hand such people later claim that "they will never show kids gambling, never gamble in front of them, never teach them how to gamble".