My mother told me to fight back. That I could hit a kid that hit me first. I did, each and every time and yet I was the one punished and my bullies were not.
It also didn't teach them any lessons, I was actually bullied worse when I retaliated because the bullies saw I was the one in Trouble not them.
No amount of talking to teachers or principals or superintendents worked.
So please next time you give your child advice think about the possible consequences even when they are defending themselves.
My mother never punished me when I fought back but the school sure did.