I think a big part of it is the mindset that college education should train you to do a job, rather than provide a knowledge based on which job-specific training can be built upon. I think this is dually precipitated by employers not investing in training/educating their employees anymore, and outsourcing that cost to the employee, but also the issue of students who throw a fit about taking class X because they’re going for a degree in Y (I see this a lot with science/engineering majors when having to take classes in the humanities).