User blog comment:PsychoWolf101/Fighter/@comment-107.199.86.195-20190313194654

Hmm... I wouldn't say it's necessary really, possibly beneficial, but I don't think it's a major prerequisite in most cases. Based on it's name and how common it is, I imagine it's just the most basic martial job class. Perhaps it's suited to a wide variety of styles or equipment, or maybe it's a class that builds a good foundation that can then be expanded in different directions according to personal preference. Of course, it could just be that Fighter is more common because it's easier to learn, so training for it spread farther and faster than other classes.