A simple mod that prevents elytra use outside of the end in a non-destructive and non-intrusive way without any extra libraries. Supports Caelus.
You won't have to deal with your (and your player's) elytras dropping from the inventory or getting yote into the abyss cause they dared shift-click it out of habit.
Includes a config option to disable them entirely, in case you don't even want them used in the end.
May work on more minecraft versions due to how insanely simple this mod is, but I haven't checked.
