I don't think so...people can just unequip, then they can equip right before attacks. Or equip right after the hit
I switch equips during war since I don't have much in the way of mith purchased gear. For when I'm attacking, stingpoint it is, when I'm steal/scout/assassinating I use abyssal sword. And best of all I switch right after my first KO from my vermeil breastplate to my red armour. It's all personal choice you do whatever you want that's just what I do