What does Dinnie learn from Lila in the novel, Bloomability?

It is through her friend Lila that Dinnie sees the destruction that can occur when you keep yourself closed off from learning new things. Lila, who is also an American, hates the boarding school. Lila cannot stand rooming with someone who is not an American. When she is not allowed to switch rooms, she complains about the food, the required community service, and her sports requirement. It is especially eye-opening to Dinnie when she notices that Lila stereotypes all nationalities to one particular bothersome behavior or another. Creech shows this attitude, that all non-American cultures are substandard, to be problematic; therefore the other characters, and the reader, are not sympathetic about the trouble that Lila always gets herself into.