School Reports

Just thought i would have a little blog about school reports. One of the schools I teach at does school reports at the end of term. After finding out I had over 100 reports to do, I was then told that we are not aloud to write anything negative or constructive it has to all be positive. This is something that i completely disagree with and im finding it very hard to do because of this. How can a child learn if they are told that they are perfect all the time. I know that going to dance/drama/singing is meant to be fun, but surely they all come because they want to learn these subjects, so if they are coming to learn and to improve then how can you help someone to improve without giving them constructive feedback. I know as a child I was always told no thats wrong do it again again again. So is this me asking to much of them? I dont know, but I do think if you are told your perfect all the time, why would that make you want to learn/ improve within a class, beacuse if your perfect whats the point in coming at all?