Don't have kids huh...gifted is just a classification for those with test scores in the top 1-5%. So if you have 100 kids, there is a pretty high likelihood you have 1-5 gifted kids (yes its not that simple, whatever).

And the research on the topic says that tracking (the idea you are criticizing here), improves educational outcomes. What to know the real problem with education? Its people like you who don't have kids and know nothing about the education system driving their own ideology and biases into the system. You have no stake in this, yet you want your opinion heard despite the fact that you put no effort into learning about the topic of education other than going through the system yourself which hardly counts.

PS You don't even know the term for the thing you are criticizing.

PPS By definition, every kid can't be average. So you don't understand statistics either.