Avoiding Harry Potter-esque pouty angst is a good call. I think that we could make a trite/clichéd story out of "teen Estel rebels by sneaking out of Rivendell and drinking miruvor and telling Elrond 'you're not the boss of me!!!' " so....let's not
I'd rather come up with a story specifically about *him*, not about coming of age in general. He's a human raised by elves (sorta), he's without a dad, but has a father-figure in Elrond, he has no doubt noticed his mother's isolation and bitterness. So, what does 15-year-old Aragorn think about the world he lives in? What are his goals? How is this different from when he was a child? What are his dreams for his own future, and what does he perceive to be his mother's dreams for him? What is his relationship with the Dunedain community outside of Rivendell? Surely he's *met* them, but has he visited them? If not, why not, and if so, what were the circumstances that led up to that visit?
Anyway, I'm sure we can come up with some interesting things to say that aren't stereotypical teen angst and rebellion, but maybe not make that the focus of the Frame?
Haakon - *great* point! When Gandalf, Aragorn, and Eomer stand around Eowyn's sickbed and talk about her experience, part of me wants to scream. None of them understand her! They're just explaining away her desires because they don't like the idea of shieldmaidens who sneak into battle! (Ie, Tolkien wrote a strong female warrior character despite himself
) But - that's not all that is said. Eomer kinda calls Aragorn on it, saying, you know, none of this was a problem til she met you. But Aragorn says - you had other things to do; she was trapped there with Théoden and no hope of it getting better. He does 'get' her in a way. So...if he sees in Eowyn's restlessness something of his own fear of being trapped idle forever as the world outside got darker in his own youth...that could work.