Comment by lmm
> Learning how to co-exist with people who aren't like you is a universally valuable experience, especially for people who would fashion themselves as "not average."
Nope. For some people it may be valuable. For me it was miserable, almost to the point of being deadly. It does not prepare you for adulthood or life or what have you in any meaningful sense (think about what would happen in your everyday life if someone e.g. decided you had insulted them somehow, and punched you. Think about how different your experience of that probably is to the average person. And then think about what that experience is like for a schoolkid). It's just a whole load of unnecessary suffering.
Your argument is similar to burning the house down, once you discover that you don't like the couch in the living room. Or, more realistically, arguing against taxation based on the idea that rich people avoid being taxed anyways, and it's only poor people who will get the short end of the stick. The school system isn't perfect, and is hard to improve due to many reasons, but this doesn't mean we shouldn't try. It has a purpose which is much more important than the suffering of any individual who goes through it. It's a shared good that can only be made better if everyone participates. When people who can contribute the most are allowed to be excluded, the whole thing becomes worthless. But, guess what, those who thought that they may be exempt from contributing to the public pool will inevitably find out that the public who was in this way deprived of a public good hates them, and will eventually come after them with pitchforks and torches.