So your son wants to wear a princess costume to school and paint his nails pink. Or your daughter wants to crop her hair short and wear boys’ clothes. Whether you’re A-okay with your child’s wishes or are panicked about what it might mean, here’s what all parents need to know about kids and gender.
A Starting Point
Experts agree that kids become aware of their gender at a very young age – amazingly even before their first birthday. Soon after birth, babies start differentiating between male and female voices, and between 6 and 12 months, they demonstrate an early understanding of gender, says Diane Ehrensaft, Ph.D. a clinical psychologist, director of mental health and a founding member of the Child and Adolescent Gender Center, and author of Gender Born, Gender Made.
In their second year, kids start developing a sense of gender identity: They learn, “I’m a boy,” or “I’m a girl.” By 2 or 3 they begin to understand gender roles and what particular behaviours are typically associated with each – for instance, depending on home environment, they might learn that girls like princesses and dolls and everything pink, while boys prefer to rough house and play with toy cars.
Nature vs. Nurture
Most experts agree that our gender identities are shaped both by society and by biology. “There’s clear evidence of a biological genetic predisposition toward gender attitudes, behaviors and beliefs based, in part, on hormones and brain development,” says Mark Barnett, Ph.D., professor of psychology at Kansas State University and a leading expert on gender role stereotyping in children.
One study of 14,000 Dutch twins at age 7 and 8,500 twins at age 10 found that 70 percent of cross-gender behaviour could be linked to genetic factors at both ages, for both boys and girls. “But it’s a combination of nature and nurture,” says Dr. Barnett. “In our society, we often encourage boys and girls to be different – we bombard them with messages of what’s appropriate, whether through movies, books, role models or simply the way we act toward our children.”