There is a boardgame called [at least in France] “The Gang” where a team of 3-6 players play a noTalk noMoney cooperative variant of TexasHoldEm. It is REALLY nice !

https://www.tabletopfinder.eu/en/boardgame/61182/the-gang

[note: from my description, it might seem unclear that this game is ALL about friendly communication and deciding altogether with a very limited set of informations. My nearest definition of a kid-compliant version of poker :)]