But if we know where the pitfalls lie, we can take steps to avoid them. For example, we know that girls who play certain sports like soccer and volleyball are more prone to knee injuries than boys who play the same sport. We know that some of the reason for that is biological, but some is due to factors that we can change. We can change the training for girls that increases their knees and reduces the chances for these injuries. I can't comment on legal matters, but I can say that research shows that when given the chance, males are just as nurturing as females.
Fathers can quiet a crying baby, they are just as responsive as mothers.
The key factor is desire to be nurturing and opportunity to be nurturing. Most schools base admissions heavily on your quantitative abilities, and many young girls are steered away from math as a focus. Fortunately nowadays, girls are steered more toward math than ever before. The long standing inequity at school that basically said that math was a boy's subject hasn't been completely eliminated but has been reduced so that more girls are taking higher level math than ever before and the girls who stick with math tend to do well at it. Even with my 2 year old son, I've noticed he'll grab a toy truck or dinosaur and avoid Barbie, without any input from me, or anyone else for that matter.