Should All Schools Have a Dress Code?

I believe that schools shouldn't have a dress code.  Dress code is what makes us all the same, no one can be unique or themselves.  No one would be able to show who they really are and dress code is stopping us from doing that.  Every one in the district should just accept who we really are and not complain about it because they can't change us or how we look on the inside or outside. Well they can... but not how I mean it.  What I am saying is don't let anybody change you.