[Madoushi]

I have a question, I understand it is important to have a four-year degree program In order to earn your Visa and so on, however what about someone who has studied in a traid? My girlfriend is learning to become a professional hair stylist, this is a whole three (not sure exact length) years of study in the class room, then more in the actual salon. In the end they take a large test for their license. If she were to complete this, would it still be difficult to get a job most likely in her proffesion, in Japan? This is not a Uni/college, however would this qualify?