Final answer:
Tara was encouraged to leave home by her brother Tyler, who saw college as an escape from their abusive family dynamics.
Step-by-step explanation:
In the book Educated: A Memoir by Tara Westover, she was encouraged to leave home by her brother Tyler. After experiencing physical abuse from another brother, Tyler saw college as an escape and encouraged Tara to pursue higher education as well. This encouragement led Tara to buy an ACT prep book and study on her own, eventually being accepted to Brigham Young University.