I am very disturbed by the prospect of losing Touch ID. It works so damned well and in so many situations that I can imagine facial identification either failin

I am very disturbed by the prospect of losing Touch ID. It works so damned well and in so many situations that I can imagine facial identification either failing (when wearing a balaclava, if the phone is partially occluded discretely beneath a desk, when unlocking it from bed when I am horizontal with my face smashed into the pillow) and functioning when I do not want it to (if somebody picks up my phone and flashes my face at it, has a photograph or 3D printed head of me, etc.).