If you can't see what you missed, how do you learn from your mistakes? lol
The score report you receive after each exam is thorough enough to get a pretty good idea of what topics you need to improve, and usually you even have a pretty good idea of what the question was. The point of not allowing everyone to see the exams afterwards is to prevent the never ending grade grubbing and arguing that would take place between students and administration, and even amongst students since you will have those one or two people arguing about semantics and trying to get a question dropped while everyone else in the class got it correct. This wouldn't be a big deal if we didn't test frequently, but since you will have an exam about every 2 weeks, this can start to get really annoying, and it eventually becomes nice to just get a score and move on to the next one without the distractions of looking back.