I think it would be better if there was a neutral NPC AI, instead of only friendly and hostile AI. As of right now, NPC's either wants nothing but to see you dead, or they treat you like you're a world famous celebrity. There should be a third type of AI that doesn't attack or follow the player, but keeps to themselves and only attacks the player if the player is hostile to them. I think the wast majority of people would try to save themselves and flee, not follow some randoms they don't know.