Arguably, card games in general can be a good tool for learning rationality. I knew that there was no point to dwelling on inaccessible options before I learned cassino, but when I learned cassino, I got to see the good ten sitting on the table and a distinct lack of tens in my hand and really understand that there would be no ten of diamonds for me this time and I should focus on the spades or something.
Arguably, card games in general can be a good tool for learning rationality. I knew that there was no point to dwelling on inaccessible options before I learned cassino, but when I learned cassino, I got to see the good ten sitting on the table and a distinct lack of tens in my hand and really understand that there would be no ten of diamonds for me this time and I should focus on the spades or something.