The purpose of studying is to learn how to learn. Schools can’t provide you all the things you need at the job because many are specific to that job. You learn a general skill set and then in the process you are in effect learning how to learn so you can relate to the job and learn it once you get there. The Military uses this process exclusively, you go to a general school and then you have OJT, On the Job Training.
Jim has no claws on his hands… Holly bit them off