So the comedy It’s Always Sunny in Philadelphia is about a group of friends that run an Irish pub in Philadelphia. The character Charlie Kelley throughout the 14 seasons prior has the unanaswered question: who is his father? In season 15 the gang take a trip to Ireland. We learn that Charlie can suddenly speak Irish. This is when Charlie meets his father, played by Colm Meaney.
So do Vulcans have books about how to talk to children about emotions?