Childish? What the hell, are you actually paying attention to the stuff you watch, faggot?
Kamichu was a political commentary as well as a portrayal of Japan, the country, between the traditional values and beliefs and the modern. About the only complaint you could raise would be a seeming trivialization of some of the problems, which, first, did fit in the context of the show and, second, was meant to show that there is more to each of those issues than the black or white approach as taken by people most often.
awesome show and amazing animation and direction