Opinion Needed please come share you views?

My friend has always told her little boy not to fight with anyone and never ever hit a girl however he was being bullied by some girls and the school was informed not alot was done as usual and turns out these girls were hitting him and he never ever hit back then he got sent home from school one day with cuts and a black eye where these little cows had beat him up and poor thing lay there and took it - i believe if a girl / woman is big enough to hit a boy/man they should be big enough to take it back . if i ever hit my hubby which i never would but if i did i would expect it back women fort for equal rights you can pick and choose what bits . What does everyone think .