Yeah, right. You are expecting elementary school children to take out an adult attacker armed to the teeth? Get a grip.
Except that I have been amazed to hear about what “little children” have been capable of when seized by sufficient indignation and have not been taught from the word go that they have to proceed through the world like sitting ducks. That is not a preferable measure, far far better that adults stood up for their proper roles, but in a society where adults stood up, so would children in the necessary circumstance.