despite coming from a poor background, i went to a grammer school and believe in the streaming system.
If properly implemented it can help all kids get to the best they are capable of being.
Admittedly the current system should be able to do better than it does, but striving for mediocrity targets seems to be the way with the current system rather than striving for each to be the best they can be.
the grammer school streaming system did have its faults, but putting the best together, and giving targeted help to the lower achievers has simply got to be the best approach.