No, you don't know exactly who the rockstars are going to be, at any level. That's exactly the point of having at every age, some "reach" opportunities for th

No, you don't know exactly who the rockstars are going to be, at any level. That's exactly the point of having at every age, some "reach" opportunities for those who can use it at that stage and show that they're outstanding and benefit from being helped to test/learn to their potential. Versus what, you suggest that we have mandatory remedial level education for everyone to sit through until the last kid is performing up to grade level?