Dunno about Canada, but in the US schools have very limited options for dealing with problem kids, and class sizes are way bigger than they'd be if we really wa

Dunno about Canada, but in the US schools have very limited options for dealing with problem kids, and class sizes are way bigger than they'd be if we really wanted every kid to have a great education (we would be aiming for about half what they are now, in that case)—more social problems is one consequence of that. If we could "sacrifice" the top ~10% most-disruptive students—just keep them out of the ordinary classrooms—it'd improve everyone else's experience and ultimate educational attainment immensely. My wife used to be a teacher and days when the right couple kids both happened to be sick, all the lessons got done faster than the time she'd allotted, giving time to cover bonus material, and she said you could just feel how much more relaxed and jovial the atmosphere was, and could see it on the kids' faces. Consider how much benefit it would convey if that were every day and those effects could compound over years. First person who figures out a way to do that that doesn't condemn the 10%ers who actually have a chance of reforming, and that's palatable to constituents, will have done more for US education than anyone else has in a century, probably.