Where I grew up no neighborhood boys would do that. We all grew up around each other, looking out for each other. That would be something from boys from another neighborhood and I can tell you, no cops would be called.
The older boys would find out where they lived and there would be some 'neighborhood justice'. More than likely they'd get their ass beaten where they'd need to go to the hospital. Nothing permanent, but they'd be going to the hospital and if their peoples had a problem with it, the smoke would be welcomed.
We never, ever fought girls like that. Must be some new ish. Three things I would like to know is 1. What is the family structure at home for those boys. and 2. What is the reaction of those boys family. Are they sorry and apologetic or are they looking to pass blame? 3. I'd like to know what the parents of the kids, but especially the boys who were just standing around said to their sons.
My parents had 2 rules about fighting where we would not get in trouble over. First, you are defending yourself and second, you were defending someone who was way, way overmatched to the point it wasn't close to being fair, such as boys hitting girls or a huge kid beating on a very small kid. Those two things happened and we weren't in trouble with them. My first fight that my parents were called on was in 4th grade, some white kid called me the N bomb and I said his mom f*cks n*ggers and I might be his daddy and he pushed me (I was hoping for that) and I beat his ass. My pop asked his parents where he learned that word. They were tryna make us pay for his doctor bill for bloody nose and a couple stitches. My pop told his pop, he says that again to his son, it will be worse.