Right now, equipment has level restriction. I’m not sure if this should really be the case. Here are some arguments against it:
Availability of equiment is already restricted by the jobs producing the equipment. You need a lvl 6 smith to be able to produce steel armor and two handed swords and a lvl 6 carpenter to produce the Recurve Bow. And lets not forget that you need for example a lvl 3 Mason to produce the smith hammer.
When a soldier dies, you will have to promote a new one. But this guy will be a lvl 0 footman and won’t be able to equip anything useful at all. In late game, enemies will literally destroy this guy, since he can’t equip anything and if he doesn’t participate in fights, he will not level up. So if there is one enemy raid that kills nearly all your soldiers, it’s game over, since there is no chance to make a comeback without decent equipped soldiers. Lets not forget that promoting a new soldier already comes with the disadvantage of not being an advanced class (knight/archer/cleric) and not having the job abilities.
Another problem is, if you promote a footman to knight, he will be a lvl 0 knight and won’t be able to equip good knight stuff. It’s quite possible that the equipment will be worse then the equipment he had as a footman.
All in all it takes alot of playtime to get a lvl 6 smith, so the level restriction doesn’t make so much sense, especially when it means game over in late game if your soldiers get wiped out once.
I hope this is convincing enough to show, that the level restriction should be removed or at least changed somehow.