Most of the classmate will not be affected until they are adults.
Most will probably laugh about it.

No one fuked with my kids!

One crappy boy threw a ball hard and hit my daughter in the head when she was 12. I mean hard enough to cause her a bad headache and then tried to hit her again with the ball but missed! I called the cops and told them to
go after the boy. Of course the cop didn't want to do it
but I insisted as it was an assault.
The boy's father had to go to the school and pick up his
boy to take him home after the cop spoke to the boy.
He was treated just like the asshole he was.
He never bothered my girl ever again!

Years later the guy told my daughter that "what your mother did made me straighten out" He apparently was never in trouble again.

Parents should not take any shit from kids.