what is the role of family in to kill a mockingbird

There are several families in To Kill a Mockingbird and all of them are very different. Scout's family differs from other families in Maycomb. They are perhaps the only family that is progressive, almost enlightened. Atticus is the moral compass of this unique family and that includes their black housekeeper Calpurnia. It is the close family dynamics and sense of humane morality that becomes the benchmark for how people should treat each other in society.