[gizmo686]

Teachers also operate under different constraints. Class sizes and number of classes per teacher varies, but a given teacher could easily have over 100 students. They also see those students for only a year before getting a new cohort to learn.

In contrast, parents have only a handful of children who they typically know from birth.

Not only does a parent have far more specialized insight into their child, but (perhaps more importantly) that parent does not need to make sacrifices for the greater good of the class.

Schools aversion to children getting ahead is largely duevto the practical challenges it imposes on the school system, not the pedalogical effects on a given child.