I agree that the game has some established background choices for Rook that it didn't properly communicate. The age is one thing that's hard coded in the storyline and that can't be easily fixed. Another similar problem is that the game only informs you after playing for a while that the elf Rook isn't Dalish, so if you have Dalish tattoos, you're just a poser. 😶
It's disappointing. If it were just one throwaway line I would be able to look past it, but it really bothers me that it's brought up several times
