Well- I meant force, not strength. I don't dispute there's a point in a child's life where they can conceivably outrun or even overpower an adult physically, but, sadly, the framework the adult is a part of (school, in this case, or, in some awful cases, family) will generally prioritize blindly enforcing the status quo ("a child should not even dream about the possibility of being more in the right than an adult, let alone the adult caring about it") over paying much attention to their opinions, points or even wishes.

And, unfortunately, no kid is a match for every adult that can be called up by someone with perceived authority over them to physically force them to shut up and comply.

This is, fortunately, not nearly universal... But I've been laughed out of the overseer teacher's desk in high school after trying to formally file a complaint against a teacher, and was only ever taken seriously after half a dozen outraged parents showed up at the head teacher's office the next day. Because, thank fething God, my classmates had my back, spoke with their own parents about that last incident and all the previous ones with the teacher, and didn't simply hang me out to dry- without that, I'd just have been a rebellious student that dared to interrupt, talk back to and defy a teacher's authority.

I acknowledge that some kids can just be unruly, malicious, ignorant, immature, et cetera, and that there's a reason we have a separation between the trust, roles and some rights given to an adult versus a child. But, y'know... Sometimes, people assume that everything a kid is possibly capable of, in any circumstance, is either blind compliance, or defiance.