Up until I was in Junior High, girls in our small rural school in Minnesota were required to wear skirts rather than pants. Eventually there were complaints about having to wait for the bus, or otherwise make it to school, in the Minnesota winter cold. One day in assembly the principal announced that girls would be allowed to wear pants to school, so long as they removed them after they arrived. A wave of cheering arose from the males present.

I really can't remember whether girls were allowed to wear pants throughout the day by the time we graduated or not.