You can set the character's equipment to be whatever you want, if you make an equipment Stat file for it. I don't think it auto-equips though if it's in their inventory list.
To have enemies actually use magic, you need to attach the appropriate charScript to them. Just having the skill known isn't enough; it's the charScript that lets them use skills in battle.
Do you know which CharScripts im looking for? I've attached something like CMB_Mage to a magic user, and now he does run away to create distance in combat, but he still doesn't cast.
