Why was Captain Underpants a banned book?

Related questions

1. How did Snape die in real life?
2. Are Grindelwald and Dumbledore lovers?
3. Why must Harry Potter die?
4. Is Hogwarts real school?
5. Who is Radcliffe wife?
6. Did Harry ever go back to Hogwarts?
7. Does Hogwarts cost?
8. Where is Hogwarts Disney?
9. Why was Harry Potter banned?
10. Who killed Fred Weasley?

Tags

1. #children
2. #pilkey
3. #elementary
4. #being
5. #encouraging
6. #insensitivity
7. #disobey
8. #american
9. #association
10. #schools
11. #according
12. #reason
13. #authority
14. #series
15. #explicitly
16. #group
17. #library
18. #banned
19. #unsuited
20. #underpants
21. #captain