I think parents nowadays tend to become too protective... For me... I will definately DO NOTHING.
they need to learn how to get along with other people... even bad people. my child can either ran away, 還手 or just stand there abd keep on 被打.
after they 被打 1000 times, they'll learn to ran away.
I think adult intervention is not needed.
but of course, I will stand by just in case, only if they are holding dangerous weapons. other than that, I will just let my child see me and know I'm there to support them!
after the incident, I will discuss the best method to deal with 被打 with my child. This way, he'll experience it, review it and learn it.
100% protection is never a good way to teach our child..
( this is different if my child is 被adult 打)
Just think about it, how many times can you save your child?