IIRC Halo had a neat system for setting inversion like this.
Instead of asking the player "do you want inversion or not", it instructed the player "look up" and observed their input.
Instead of asking the player "do you want inversion or not", it instructed the player "look up" and observed their input.
(Halo 3 is the first one I played so I don't know if they did it before this one)