She finds it stifling, as evidenced by Scout's first interaction with Miss Caroline, who disses her father's approach to learning. Atticus
advocates not only learning through books (he obviously is well educated, he's a lawyer after all) but also through experience and the freedom of imagination.
When Scout tries to explain the origins of her name, Miss Carolin responds: "Let's not let our imaginations run away with us dear. Now you tell your father not to teach you any more...You tell him I'll take over from here and try to undo the damage...Your father does not know how to teach. You can have a seat now."
I mumbled that I was sorry and retired mediatating upon my cirme. I never deliberately learned how to read, but somehow I had been wallowing illicitly in the daily papers."