I wouldn't spend my time or energies wailing at the schools; especially not as a student. If you have the will, permission or power to not_attend, then don't. If you must, then whether you know it or not, it can do a great deal for you.
Tests and examinations motivate you to assimilate the information. They also can report to you or <whomever> the extent to which your mind is able to understand the concepts involved and apply the lessons taught. This isn't always a bad thing.
Where "education" is simply the mindless transfer of information for recital, the worth is debatable. But one of the best, most important benefits to the individual themselves
is the establishment of neural pathways into new ways of thinking, problem solving, practical mathematical skills and much more.
Sure, that glass is half empty. But unless you have the choice to abandon it, why not dive in to that other half?