Who are we allowed to become? Children growing up today are likely to believe they can be anyone they want to be, and parents and teachers have grown fond of the phrase “Whatever you are, be a good one.” The emerging narratives of transgender children dovetail perfectly with this philosophy, children whose parents do not force them into a lockstep performance of the gender they were assigned at birth have become visible members of society. Yet the increased presence of transgender issues in our national conversation has prompted some to wonder—with or without their tongue in cheek, or in check—whether...