The problem is a misunderstanding in the objectives of education.
While people usually (and wishfully) think of "education" in the Trivium-like meaning (also sometimes called Medieval Education, if one is unabashed by the now-negative "Medieval" adjective) instead of what governments want, which is "national, compulsory general-knowledge education" (sometimes also called Prussian education system).
As is usual, both education systems have their advantages, but emphasis in the former is dwindling. Myself I believe that we should focus on the former but pass a little in the latter to let students have contact with all types of knowledge and then choose what (and how many) they like most.
As a teacher I had said once: "If a student is good at something and bad at something else, should we focus on what he's good at to reach maximum potential or should we focus on getting better where he's deficient, so he'll have a broader set of skills?"