Suspension for a Mohawk

I understand dress codes as important sometimes. I taught in East Boston, and the color red was forbidden. That is because it was associated with a gang and students would go to all lengths to find creative ways to wear a piece of red to show their allegiance.

But a haircut? A student got suspension for a mohawk. That's so old-school that it isn't even a rebel thing to do anymore. C'mon, that is pathetic.