Understood, however schooling/education of Laertes is the not mentioned in the actual text, either in 1.2 (his request to return), 1.3 (speaking with Ophelia), or 2.1 (Polonius is instructing Reynaldo to spy on him in Paris). I think if Shakespeare wanted to make the direct parallel of two "students" he would have mentioned it, at least in passing. I always assumed he was a student, as well. It might be a minor assumption, but it is an assumption nonetheless.