I think the horrible truth about the education system is, is that it discourages wonder.

In college, you have 5 courses per semester, possibly homework and an important test at the end.

The homework has to be finished, essays need to be written and facts need to be learned for tests. All of this times 5. I think the most mentally draining part of it all is the constant context switching.

In the end the hunger of students to delve deeper is not super high, and a lot of lecturers want to stay close to the courses structure they originally planned out (sometimes years or decades ago).

A good lecturer can make one course go a little better, but IMO it's the system that discourages interest.