Some progressive, well-to-do parents are raising their children without disclosing gender to anyone, not even the child. You can imagine the clothes, haircuts, behaviors that will be taught, and the bullying/teasing that will likely ensue from other children who know their identity. The name for a small genderless child is a theyby (pronounced THAY-bee), not a baby.
Quote from this NBC News post: "When the Sharpes arrived at the hospital for their delivery, they asked the staff not to announce the twins' sex. Even after the newborns were put in their arms, their anatomy remained a mystery for several hours ... Is Zyler a boy or a girl? How about Kadyn? That's a question their parents, Nate and Julia Sharpe, say only the twins can decide ... Even the children, who are aware of their own body parts and how they may differ from others', are not taught to associate those body parts with being a boy or girl."
Watch the video about the Sharpe twins here.