You've probably reached the point in your life where your ideas about the kinds of clothes you look good in and your parents' ideas don't quite match. The difference of opinion here is mostly about custom. It's probably not that the way you want to dress or the way your parents want you to dress is wrong, but that each of you is operating according to different habits and tastes. These kinds of conflicts can usually be worked out because customs can be changed. That means there is always room for compromise and growth.
Tradition is different.
If you told your parents that starting tomorrow you'll be going to school naked , your ground for compromise is gone. To grant this request, your parents would have to compromise their basic standard of decency and their responsibility to love and protect you, and that is something they would never do. Tradition involves core values and beliefs which can never be compromised. Custom involves tastes and habits which can be. This is where Scripture comes in.