I let my childrens learn basic karate and self defense so anytime they need skills I told them not to hesitate to make some moves .
But I make sure they will have a maximum tolerance before doing some actions
My youngest son refuses to learn basic self defense - my older son cant get enough of it
Trust me there is still bullying in schools today - even with smart phones and the internet.
Best thing to do is get your child involved in being able to defend themself if danger arises.
You can never be to sure these days with all these crazy kids bringing semis to school

Ofcourse mate we all know that bullying in any form might happen to them,thats why I said that they must have maximum tolerance so Incase they used force to fight bullying at least reasonable for me to accept the verdict of teachers
Theres a chance that my son punched down one of the bully in school because of nonstop daring for him to practice his karate and when he got tired of him?so the verdict happened lol 😂