My four year old dressed to the nines for our special night out to Disney on Ice. I thought she'd be unique, a stand-out. I thought she would garner attention in her plum fairy princess outfit. What I forgot was that "costume" is the preferred style for the four year old girl crowd. Instead of being the one, my daughter was one among many. Princesses (all of them, including Pocahontas), fairies, Minnie Mouses, and any and all Disney characters pranced in mini-form around Reliant Stadium. My daughter had, in her ineffable way, tapped into the collective four year old dress-up girl consciousness. As we passed these costumed sprites (and fairies, and princesses, and mice), my eyes met the other parents' eyes in a flash of commonality: we were parents with This Sort of girl child, and we were That Sort of parent, who was willing to let our girls dress up to go out, even if it was in costume. Whether we had anything else in common was irrelevant; on that point, we met and...