Agreed, but the issue is when a boy and girl act exactly the same and the boy is commended or at the very least ignored while the girl is chastised. They should be the same. Otherwise we're teaching girls not to be assertive and to be quiet and that does not help them if they're trying to succeed in business or other endeavors later in life.
The whole point is to teach girls that they can be assertive and exhibit leadership qualities without being chastised for it. That's all, and nobody should have a problem with that.
And we're not talking about adults here - once you're an adult you're on your own.