When I was 17 I wore a little badge on my lapel that said there are no rules. It might have been pinned on my jumble sale waistcoat, which I wore over a collarless khaki shirt or a blue and white striped prisoner's shirt, red needle-cord Levi's, and big boots, first hand made crepe soled ones, later Doc Marten's. My hair was cut short and I was already 6 foot tall. Some boys in the school used to laugh at me as a matter of policy, loudly every time they passed me on the stairs, on a corridor, or out in the grounds, and I can tell you now that it hurt. Even though I knew they were the fools, I still felt foolish.
I liked the idea that I didn't have to follow anyone else's rules about my appearance or anything else. The idea, mind you - the many rules we unconsciously follow are hard to spot at any age, especially in your teens. Family rules, social rules, cultural rules. The badge was a kind of statement of intention - to explore life outside the rules, to question the rules, to break the rules and not to care if people laughed.