Okay, so maybe the policy isn't specific, but the school did make an attempt to work with the mother by informing her that the haircut was unacceptable. I think the bigger problem is the message it may be sending to the child -- that you don't have to abide by rules or listen to someone who is an authority figure. On the other hand, I'm sure we wouldn't have many of the freedoms we have today if someone hadn't challenged the system. I'm just someone who typically always follows the rules. Can't help it.
My story.
I was never a bad student. Presently, I have a 4.0 in Grad School (double masters, MFA/MBA), and am on my way to follow this with a JD. I graduated from college Summa Cum Laude- 3.98 GPA and perfect attendance. To this day I'm good friends with many of my professors., In high school I fluctuated between a 3.7-4.5 (weighted) through high school, but I missed quite a bit of class to go surfing. Prior to high school, I never had lower than a 3.5 GPA and can honestly only recall 4 occasions in which I missed class.
I was also always in the principals office. Never for any property damage, never for anything violent, never for anything illegal.
Always for insubordination, for dress code violations, and for "talking back" (fell under misc. rules). Mostly dress code. Showing up with green hair, wearing a legalize it t-shirt, and in general being myself.
My parents insisted on me being myself. They were by no means pushovers... on more than one occasion I was disciplined with a belt or an extension cord. However, my parents weren't cruel. They knew balance. I now know balance. They taught me that it is completely possible to question rules while remaining a functioning member of society. I thank my parents for that, for refusing to allow me to become just another sheep.
I spent a total of 53 days of my high school career suspended, whether in school or out of school.
Fast forward to today.
I took a peek at my classmates, and how they were doing now through some of the various online networking sites.
Out of my graduating class of approximately 400, less than 50 of us have completed our undergrad degrees. There are several that to this day are still in a community college and living at home (I'm 26 btw). Only 2 have completed their masters (3 in a year when I'm done

), and not a single one other than me can say that they're doing what they love doing. Not one of them can say that they're happy with the decisions they made in life (I asked them). They all followed the rules.
I am quite happy with the decisions I've made in my life, and although I have made mistakes, I have no regrets. I didn't follow the rules.
Not bad for a guy who spent 53 days suspended from school.