It is important to emphasize that these findings describe only the average differences between boys and girls. In fact, the range of abilities within either gender is much greater than the difference between the “average girl” and the “average boy.” In other words, there are plenty of boys with excellent verbal skills, and girls with excellent visual-spatial ability. While it can be helpful for parents and teachers to understand the different tendencies of the two sexes, we should not expect all children to conform to these norms.

…Genes and hormones set the ball rolling, but they do not fully account for sex differences in children’s brains. Experience also plays a fundamental role.

Are there any differences in the development of boys’ and girls’ brains? • ZERO TO THREE

Again, not enough credence is given to socialization here.