IMHO education is about giving everyone the u same opportunity, regardless of social circumstances. Evey study I know of shows, that the later you start to separate children the better of they are globally. That means that a school system faced with tremendous social imbalances has to ready to cope, and cover, those.

Higher educated parents have it easier helping their children with homework. They have the money and time for extra tutoring. Lower education equals less capabilities to support with homework, most often less time and certainly less money for extra tutoring. If a system is such you only succeed when you fall in the first group, it sucks. Supporting such a system, wholeheartedly as some on here seem to, is just cold hearted.