There's a few reasons: Smaller class sizes for general education courses so the teacher knows you better and so do your classmates. Leads to more accountabilit

There's a few reasons: Smaller class sizes for general education courses so the teacher knows you better and so do your classmates. Leads to more accountability for completing course work as you can't just be a face in a 500 seat lecture pit. Many of the teachers coincidentally teach advanced high school courses and moonlight as adjunct professors, so that also contributes to the "high school feel".