Peter Weir's films Witness and Mosquito Coast both deal with similar themes. Exile of the protagonist, and a sharp maturation of the children within the films (both in a sense becoming wiser than their elders).
Witness:
When the Amish child Samuel Lapp witnesses a policeman commit a murder in a train station bathroom, his life is instantly brought into the violent American/English world. This one incident for Samuel marks a transition in his life. Until this moment, all he had known was the world of his family, the Amish, on their farm. After John Book exiles himself to the family farm, he begins to have a great influence on the child. When Samuel's grandfather discovers him playing with Book's gun, the two have a discussion. Samuel reveals to his grandfather his thoughts on violence, which, now having directly experienced a great act of violence, greatly differ with his grandfather's. Samuel is shown to be sympathetic towards violence, which Grandfather Lapp and the Amish community greatly do not support. This scene is shot wonderfully, with the camera proxemics intimately keeping the two very close together, revealing their great affection for each other, regardless of their now different opinions. The gun lies on the table out of focus, showing how the violence will always be indirectly related to their personal history.
Mosquito Coast:
After Fox exiles his family to South America for his ideal Swiss Family Robinson-esque fantasy of living off the land while "helping the natives" begins to fall apart, Ford's son Charlie begins to break away from his support of his father. The scene in which Fox's machine begins to explode after Fox kills three men reveals this great diverge in trust and support. The flames within Fox's eye glasses show just how far off the deep end he has gone. The quick cut to Charlie backing slowly away and his disheveled appearance reveal his now fractured image of his father. He has surpassed his father in sanity and now he's stuck with him in South America.