This has been brought up before, but with two new companions to level it is time to bring it up again. Companions should gain experience from quest turn-ins. This game has questing as a large focus of the gameplay, and it seems arbitrary that companions gain nothing from all the questing. If you don't want companions to be leveled from people doing daily writs, then just flag daily quests to not give companion experience. I would rather quest than go to a public dungeon and grind mobs for hours. Please consider making this change.