Sadly, when this writer taught high school in the Province of Ontario he witnessed the collapse of discipline in the high schools there.  It is one of the reasons why he left Canada.  Canada is lucky.  It can still import disciplined talent from countries like India to drive its economy.  America has a similar need.  Sadly, Canada borrowed American educational fads instead of devising its own.  The result is to "Americanize" Canadian education - to the harm of Canada overall and its future.

Your humble servant here agrees and disagrees with you. Yes, we ought not to expect the same outcomes for all students. If they cannot do math, they can take options like woodworking. However, once they are in woodworking or math this writer sees no reason to relax standards period. Above all, a teacher has the right to expect each and every student to treat him or her with respect - at all times - as they would their boss on the job. One of the reasons we are losing competitive advantage is simple lack of discipline. We do not need more money to fix education. We need discipline, which means this is what we do here and what we expect; if you do not like it, there is the door.