although atticus did not want his children in court he defend jems right to know what has happened explain in your own words atticus reasons for this ( look at the speech beginning ) this is their home sister

Atticus didn't want his children in court because he feared it would frighten them. The children were young, naive, and optimistic. Jem wanted to see his father at work, and he believed in him. Jem idn't just believe in the cause, he believed in Tom's innocence. He believed his father could do anything.

When Aunt Alexandra goes on a tirade, Attticus isn't going to support their presence, particularly because they disobeyed him. None-the-less, he does support awareness. He does reinforce their place as citizens of Maycomb, and their right to formulate their own opinion based upon knowledge rather than rumor. Atticus protects his children, but he doesn't raise them in a bubble.... he doesn't want them ignorant. He just wants them protected.

Atticus feels that the adults have made the world the way that it is and the children have to learn to live in that world. They can't hide from it and need to be exposed to it as early as possible.