Scout’s sense of belonging is reinforced by her father because whenever she is upset by anything he is there to comfort her and give her advice.
Growing up is tough, especially in the South in the Great Depression. Atticus was an unusual kind of parent, because he did not talk down to his children. He sat with them, read to them, and cuddled them.
When Scout got in trouble at school for reading and for telling the teacher not to give Walter Cunningham lunch money, her father gave her some good advice for life.
"First of all," he said, "if you can learn a simple trick, Scout, you'll get along a lot better with all kinds of folks. You never really understand a person until you consider things from his point of view-" (ch 3)
Atticus helps Scout to find her way around people. He encourages her to look at people for who they are, and not judge them but try to understand them.
No matter what problem Scout has, Atticus can help her figure it out. She knows she can come to him for anything. Her issues are his issues. He listens to her, and tries to help her through her problems. She knows she has someone to talk to.