SAY NO TO THE NEW DRESS CODE!
You have the right of expression!
Students are not robots.
Students are of all variety. From the athletic, to the student council, to band and even chess club. The point is, everyone is different. Students come in so many different types that stripping them of their right to wear the clothes they like is stripping away their uniqueness and individuality.
Students are people, not dolls.
They have rights.
High school students have it rough with focusing on grades and fitting in, so at least letting them wear the clothes they like is important.