Given this importance, Finn could not simply be a sidekick or key ally in the story; he needed a story arc of his own. For the first time, The Force Awakens offered a Star Wars film in which two characters, not only one, are undertaking the Hero’s Journey.

http://fangirlblog.com/2017/07/finn-and-the-heros-journey-in-the-force-awakens/

(via diversehighfantasy)