i don't think complete separation is necessary. current education systems (system*s*, as in all countries) are not usually fit for properly helping students that are going behind the standard program - not necessarily someone with disabilities, but just de-facto.

we should work on making schools more merciful in those cases, as well as getting actually competent psychologists in there. that should be enough for resolving this issue, at least from my (unprofessional) point of view.