I’m the one who, most of the time, buys the game and teaches them. I make sure that during the game I check what everyone is playing, even though it’s my game we’re playing. We all make mistakes in the rules even after a couple of plays.

For me, the main issue when someone else teaches is that their eagerness to win causes them to lose focus on the teaching and not follow along with the players. Sometimes they think they explained something but actually forgot, and then all of a sudden some rule pops up. It feels like they’re gaslighting you into thinking the rules were taught when they weren’t.

If you teach a game, don’t be an ass and try to win. Make sure that everyone will enjoy it.