Eh I don't buy that, at least not as the primary goal. It's more a side effect of the structure and resources of a class. When the classrooms were built to support 18 students per class, and the teacher's union contract says they'll have a max of 25 students per class, but in actuality they have 31 students per class, kids sharing desks and bumping elbows, yeah we kinda need all 31 of those kids to sit down and buckle up, or no one at all is going to get any learning done.

Is it the ideal learning environment for every student? Nope. Is it the ideal learning environment for any student? Probably not. But unless we're willing to invest more in education, it's what we're working with.