Tempering isn't a matter of choosing, it's basically a magical brainwash. In more technical terms, and based on how Primals react when they fail to temper the Player Character, tempering is the claiming of the subject's soul. People with the Echo are immune to them because their soul is already claimed by Hydaelyn.
I'm sure you could certainly pledge yourself to Ifrit willingly, but then you could change your mind. And the Primals don't like the idea of people changing sides and disobeying them, so they probably temper as many of their followers as they can anyway.
Odin is left like a mystery. There are some quests in the Shroud about him. He was sealed inside a crystal by one of the trademarked ancient civilizations, but the seal on the crystal weakened and now he is free. He is not revered by any beastmen, though, so how he keeps coming back is a matter of speculation.
And what do you mean by "the tribe of Deeper Noscea"? If you mean the kobolds, they worship Titan.
I'm sure you could certainly pledge yourself to Ifrit willingly, but then you could change your mind. And the Primals don't like the idea of people changing sides and disobeying them, so they probably temper as many of their followers as they can anyway.
Odin is left like a mystery. There are some quests in the Shroud about him. He was sealed inside a crystal by one of the trademarked ancient civilizations, but the seal on the crystal weakened and now he is free. He is not revered by any beastmen, though, so how he keeps coming back is a matter of speculation.
And what do you mean by "the tribe of Deeper Noscea"? If you mean the kobolds, they worship Titan.