Give A boy A Gun

I am currently reading a book called "Give A Boy A Gun". My friend Kevin recommended this book to me. At first I was a little critical about reading the book because well, I dont really know, but I asked him to tell me more about the book and then i got more intrested in the book.

But what really got me intrested in this book was that it had to do something with social action since in the book, violence is involved. But, it wasn't like the kind of violence that happens in the streets or whatever. It was the kind of violence that takes place in an educational environment. Even though I just started reading this book, I'm already thinking why this kind of violence happens in schools all around the world. Can somone like explain to me why this happens because im like lost. What's the actual reason why kids bring such violent weapons to school and decide that it's "ok" to shoot someone or whatever ? I, for one believe that violence shouldn't happen in school because, first of all, what does violence and weapons and stuff like that have to do with school ? Isn't school suppose to be educational and filled with learning ? Second of all, why even do it? ( I think i've mentioned this a few times before...) Is life that bad that kids just all of a sudden have to bring a gun or whatever to school and take their anger our on teenagers ?
I seriously don't get that at all.

Even though I'm still reading this book, I can already tell that this is going to be another one of my favorite books that I've been reading in the 8th grade.