DS (13) got his back to school haircut today. He's been going on his own for a good couple of years, so he knows what to ask for from his usual barber. The problem is that on this occasion, DS got a "high skin fade" haircut and which has resulted in his entire back and sides being shaved bald. He's had similar cuts at the start of the summer holidays before (which he really likes), when we don't have to worry about uniform rules. The issue is that he's gone and got this haircut the day before he goes back, so there's obviously no time for it to grow to a sufficient length. His school rules state that hair should be conservative and no shorter than a grade 2 in length. DS's hair is clearly much shorter than this, with his back and sides being smooth bald. I'm obviously quite disappointed in DS for this, as he knows the rules well and he's opted for a style none of the other boys at school have. DS is a good lad, and does well in his classes, so I'm concerned about the impact on him from spending a while in isolation. Am I overthinking this?