College tends to give you a very simplistic and naive view of the world, especially when it comes to crime, sociology, and psychology. Thus you also think there are very simple solutions to issues involving these things. Aka your pollyanna and very naive but you think you know it all.
For instance its one thing to take CJ classes and learn about the cycle of violence and how women tend to stay with their abusers. You think in your pollyanna world view that they just need someone to explain this to them and that you will be that person who makes a difference and changes it. All it really takes to shatter this pollyanna view is to go to your first domestic, have the victim curse you for arresting their spouse instead of magically snapping your fingers and changing him / her into someone they’ve never been, and then filing complaints on you that you lied about what they told you happened so that you could make some sort of mythical arrest quota (or if its a minority arrest a minority).