That's the problem: college does not--nor should it--solely exist for preparation to enter the workforce. That's why we need a resurgence of trade programs.

Anyway, for every course that is not Math, everything you learn was created for a reason (make that a "most things you learn" for Math).

Yet, before one enters an university, teachers almost universally refuse to answer this question.

Everything will be used in real life somewhere. Also, education is about more than just the immediate facts being presented. Its primary purpose is (or should be) developing the ability to recognize connections between subjects, events, and ideas, and use those connections as the common language of society for communicating and understanding.

The lack of this intended benefit of education is what allows talking heads to polarize society by shouting past each other.