Board Thread:General Discussion/@comment-67.171.10.161-20150226224718/@comment-25555436-20150227012252

Botany and herbology could be for either first-aid, or to know which ones could be used and which ones are dangerous, to either Hunters, Grimm, or both.

Besides, just because Hunters dedicate their lives to hunt Grimm, doesn't mean they shouldn't learn other things. A Hunter has the right to learn about art, music, plants, and other things that may seem unnecesary. I can see these not being obligatory, but I can see them as something that the students can learn if they want to.

Like clubs. You can join one, but you are not forced to (well, as far as I know).