Babies Are Born Blank Slates. Our Obsession With Gender Ruins Them.

Many of us believe, or hope, that a girl will be sweet, responsible and hardworking, affectionate, pliable and respectful. We believe she will be someone we can dress in cute clothes and whose long hair we can plait into braids, under the ahistorical guise that these things are only for girls — even if want them to be strong, independent and proud. We believe our boys will, or should, be authoritative and boisterous, natural leaders in the vein of Coach Taylor: strong and sporty companions just competitive enough to win.

But Brown has waded through much of the science around brains and gender, concluding that the sex we are assigned at birth has little to do with who we are as people. While there is no consensus within the scientific community, many studies assert that there is no male or female brain (one study calls them “intersex”), no inherent desire for cleats or ballet shoes tied to gender, no special skill sets or ingrained behavior. “There are very, very few differences in cognition and behavior,” between young boys and girls,” says Brown.

There are, of course, physical differences wrought by hormones — muscle mass, fat, and, of course, the development of sexual characteristics. Some studies also assert that there is an inherent preference for toys with wheels among boys, perhaps due to differences in the development of fine versus gross motor skills. (One study found this to be true even in monkeys.)

But it’s possible that many of the differences between young boys and girls come from the way we approach child rearing, and the messages kids get about how boys and girls should look and behave: the cultural stereotypes we impose on them that become self-fulfilling prophesies of sorts. “It’s almost entirely cultural,” Brown says. Natal sex, in other words, is less predictive of who your children will be than of how you will treat them.

 When nature meets nurture. Olesya Feketa / Shutterstock / Olesya Feketa

I see this even among the most progressive parents: parents of boys encouraging behaviors bordering on bullying while not tolerating correlating behavior in girls. Sweetness in boys is still too often viewed as a weakness; in girls, it’s a virtue. Some progressive parents told me they dissuaded their boys from wearing pink t-shirts, cowgirl pajamas or Hello Kitty backpacks, no matter how much the kids wanted them and how much they wanted to give them those things — they simply couldn’t summon the strength to swim against the current of gender pressures. (Admittedly, this is a far harder prospect for boys than girls.)

And countless times I have heard, “You’re lucky you have girls,” as parents of boys describe their children’s inherent wildness (believe me, my daughters can rival it). Sometimes I have heard the opposite.

One friend had three sons, each time hoping for a daughter. Girls, she said, stick close to home when they grow up and have children of their own, if not geographically then emotionally. Another friend told me she believed girls would look after her when she grew old.

Yet I have seen no evidence of any of this.

When I point this out, most parents I talk to are defensive, unwilling to admit that they have bought into stereotypes about what’s appropriate for boys and girls in their clothes, toys and activities. They are disinclined or unable to examine what they encourage, allow or disavow based on natal sex.