Jem shows bravery when he ventures back to Radley’s Place at two in the morning to retrieve his pants in order to hide his tracks. He also shows intelligence and leadership when planned the operation to send a note to Boo Radley and assigned Scout as the lookout.
Jem’s impulsiveness shows when he repeatedly criticizes Scout for being too masculine without considering how discouraging that trait of her personality could make her feel. This also shows that Jem believes in the rigid gender
roles that society expects everyone to follow.
Jem is growing up to be a great leader, showing both intelligence and bravery. Except, as he matures he is allowing society to control the way that he acts and how he wants those around him to act. Even though Jem still has a lot to learn in life, he has shown significant maturity for his age and is growing up to be a fine young man.