This is why removing TouchID was shortsighted on Apple's part. In situations where FaceID doesn't work, for whatever reason, having TouchID as a backup is a lot more secure than having to input your phone's master password in public (and while drunk or high, ha!).
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ETA: Now that I'm thinking about it, TouchID was a reason, along with the headphone jack, that I held on to my 6s as long as I could. Apple Wallet is especially annoying to use when using FaceID isn't possible or is inconvenient.