Same shit happened to me in sixth grade. Standing up for myself was certainly important between getting an adult involved.

I’m glad your kids were cool about it but it’s anecdotal. I have stories about kids using karate to be bullies. It doesn’t really address the idea that four year olds and their behaviors should be supervised and addressed with proper behavioral modification methods.

The karate stuff is fun for socialization and discipline not teaching toddlers to punch other toddlers to “reclaim their self esteem.”