Society for *not* cutting-up children

I'm unfamiliar with the religious requirements, but to me, almost any workaround seems better than cutting children's genitalia:

http://www.bilerico.com/2011/06/the_anteater_vs_the_mushroom_debating_circumcision.php?utm_source=front_page&utm_medium=top_story&utm_campaign=Top_Story

Since the requirement only applies to sons, why not provisionally raise all children as daughters, until they are old enough to declare their sex and their willingness to undergo circumcision? Simple, really, and so much kinder.