If we followed the rules of normal armies, the Fire Emblem classes wouldn't make sense at all. And yeah, I won't stop you from actually picking up a weapon outside your class in this roleplay, but F-rank weapon skill is going to stop you from getting very far with it. Especially since I won't allow that skill to increase because it is outside your class. Haha.

I see your point with the frail dragon-child and those kinds of weapons. Still.