Emotionally healthy children who grow up to be emotionally healthy adults are comfortable in their own skin, in the gender God chose for them. These days, when a child shows non-stereotypical gender behavior, people start to freak out, afraid that their child is actually the opposite sex on the inside.
Good news! There are things parents can do to raise gender healthy kids, girls who are content to be girls and boys who are glad to be boys. Without resorting to artificial stereotypes, either.