Because you like Jay Gatsby in The Great Gatsby
The brilliant and well-adjusted Ender Wiggin is being groomed for the next generation of military leaders to fight alien invaders. See them in Ender's Game.
Jacob Black is the boy next door who's also the wolf next door. See them in Twilight.
Jim Stark is a teen torn apart by what the world asks of him. See them in Rebel Without A Cause.
Raised to happily follow the rules, Cassia might actually be more rebellious than she thinks she is. See them in Matched .
Jack's big imagination is never limited by his incredibly cramped surroundings. See them in Room.
Rose Hathaway is a reckless, rebellious smartass who's training to be a royal vampire guardian. See them in Vampire Academy.
Buttercup is a farm girl turned princess who'd do anything to have her old life back. See them in The Princess Bride.
Noah Calhoun is lost without Allie, who seems to have moved on. See them in The Notebook.
Riggan Thomson is a washed-up movie star running from his inner demons. Alas those inner demons look just like the superhero he used to play. See them in Birdman.
Even the smallest person can change the course of the world, if he's brave enough. See them in The Lord of the Rings.