The desolate lands near the border of Erelith had been Rhaegar's home for as long as he could remember. Wandering from one hideout to the next, he followed a woman named Cara like a lost puppy, obeying her every command with the unwavering belief that she was his only chance at survival.
From the moment Cara realized that Rhaegar could finally understand her words and comprehend her instructions, her first instinct was not to teach him how to speak properly, let alone how to read or write.
No, the first thing she made sure he understood was that his mother was dead—and that his father was determined to find him and kill him too.
The political landscape in the Beast Kingdom was notoriously unstable even after their escape, and nomads avoided the borders for fear of getting caught in the chaos.