Earlier quoted context omitted.
What do you like about Touch ID? I think I'd switch platforms before going away from Face ID, it's so trivial to authenticate without even moving a muscle that I don't even think about it. I have an older iPad with touch ID, and I simply turned it off because it felt like an anachronism in the experience.
Fingerprint vs Face shines while (for instance) having a conversation and, because you have manners, want to maintain eye contact while pulling up a photo of that thing you are describing, or to make sure that's just a robocall and not your wife with an emergency. It also shines first thing in the morning where your hair and eyes are so disheveled that even Siri didn't recognize you. Your thumb is probably still the…
Unless your eyes point in markedly different directions, I'm having a hard time imagining how you'd manage that anyway.