Back when I was in high school- I graduated in 1970- the dress code was- no pants or slacks for girls, the boys could wear Levi's- but they had to be in good shape and pressed. NO white T-shirts at all. Colored T-shirts weren't around then.
Women's Pant suits were just coming into fashion- and us girls really wanted to be able to wear them. Our hemlines were just above the knees and rising.
I had always worn my hemlines about 3 inches below my knee. When the hemlines raised, I begged my Mom to raise mine. She agreed to do so with just one skirt.
I nearly froze my tush off- this was in the winter in Seattle.
The school officials refused to allow the girls to wear slacks/pants. Now, ALL of the officials were men. They wore slacks- they didn't have a clue how miserable we girls were in our skirts.
So we challenged them to walk the perimeter of the outside baseball field wearing a skirt. THEY did it!! Not one of them made it all around the field. They quit at second base and stated that girls could only wear dress slacks, in good repair and pressed.
During the winter- nearly all of the female student body were wearing dress slacks. No more frozen bums.
It wasn't until many years later that they finally did away with the dress code- too bad, because they really need it.
Being modest is a choice that each individual can make. Before the dress code was changed allowing girls to wear slacks- I lowered my hemline back and wore knee socks to help keep me warm. I also wore full skirts because the tighter skirts were not modest in my opinion.
During my senior year I wore my hems to my ankles. I didn't have to shave my legs- I didn't have to wear nylons/pantyhose (I hate them even to this day!!) and I was warm from my ankles to my shoulders

. Granny Dresses! Oh how I wish I could get them now.
Maybe I should uncover my sewing machine and go to the thrift stores and hunt up some patterns and make my own again.
All my life I was taught by my parents to Dare To Be Different. Don't always blindly follow the fashion trends. Pick what suits you, create what you are comfortable with, and Never, never, never show more than what your father will allow you to show

. Which is just the elbows and knees