Almost all were taught in this fashion in high school, unless you were lucky enough to get an inspired and conscientious teacher, and probably now in universities since standards have been gutted.

I would also agree that many students of the humanities lack critical thinking skills, but less so in my experience, than those trained in functional areas.  The lifelong practice of reading widely and thinking is probably the best way to develop the ability to think critically and this is very much the responsibility of the individual.

There are lots of articles in the Globe belabouring responsibility in general but not emphasizing individual responsibility which I concede is a problem.