Legging in public school.

I wore leggings to school and I had a shirt that covered my butt. Well a teacher sent me and a lot of other students to the office for dress code for the same reason. There was at least 12 dress codes today. The principal wants the shirt to be 2 inches below the knee. I’m sorry but I don’t think girls want to wear a dress with leggings. So I am starting this petition to get this rule changed from two inches below the knee it can be as long as it covers your butt you should be fine if you wear leggings. Thank you!!