I should imagine they place a fair bit of emphasis on educating the young to at least read and write in basic terms. Everyone is invested in recovering the past, so if they come across something they need to know if it is worth recording or if a message they receive from someone is important and should be acted upon. A lot of lore would be passed down orally as they haven't got room in the aravels for entire libraries of books. Arianne's clan had the book about eluvians. I believe not all of it had been translated and in any case it was an ancient tome. So things like that they would carry around with them for later reference but ordinary history would simply be recounted over an over again until every child knows it by heart. We see this happening with the lore keeper in DAO both with our own clan and when we visit Zathrian's.
It occurred to me when posting elsewhere just how invisible the city elves are in DAI. Their sole representative, Sera, has nothing to say about them and repudiates the idea she is an elf. So the person who could have given an insight into what it was like growing up in an alienage says nothing at all on the subject. We never see an alienage, never get told about any of the abuses by Chevaliers and other nobles, never get a full account of what Celene did to the rebels and their families in Halamshiral (just one passing reference) or why they rebelled in the first place. In short, if you were a new player, you get no feeling for how the city elves are treated so much worse than anyone else or why they might be enticed into joining the Qun or running off to follow Fen'Harel, or why the Dalish are so determined not to surrender their lifestyle and submit to human rule. The nearest we get is a few insults thrown about and that really is it.
All the elven focus was on either the Dalish or the ancient elves. It is as though the writers assumed everyone had played the previous games and read all the books, so would know the issues involved.