I did. There were fights around that age, middle school. I just noted that repercussions were mild at the time. I definitely don't remember police involvement in kid affairs until high school, and even then it wasn't about violence.
well, those couple of fights that i talk about, were massive. kids from other schools in city arrived in following days "to show presence". so there were some police. (i am describing high school, grades 9-12).
but in daily life, there were no fights that I remember.
I don't think it's that way anymore.