"Alice's Adventures in Wonderland was originally banned in China and other parts of the world because some people objected to the animal characters being able to use human language. They felt this put animals on the same level as humans"(Banned).
. "In 1900 Alice in Wonderland was suspended from classroom use, pending review, at the Woodsville High School in Haverhill, New Hampshire, because the novel contains expletives,sexual content and derogatory characterizations of a teachers and of religious ceremonies"(Banned). More recently it became controversial because of what some people thought were drug references. In Chapter 5 Alice meets a Caterpillar that is sitting on top of a mushroom and in recent times this been cited for drug references. http://www.bannedbooksweek.org
Even though it is written as a book for children it is complicated and has many ironic twists and puns that might not be understood by a child which is why some people overreacted to the book's content and wanted it banned.This demonstrates the level of fear some people have about any book they consider inappropriate or subversive. Many literary scholars who have analyzed the book do feel he is satirizing the political system of the time, the mores of society and certain aspects of his own religion but a child reading it wouldn't even understand those underlying themes. Which also in itself doesn't make censoring the book necessary because a writer should be able to express his political and religious view however he chooses.