Biometrics are really not fine. They're somehow supposed to be some permanent marker of who you are, but that's really not how it works in the real world. You physically change.

I've broken any biometrics recognising me in a dozen different ways, this year alone. Cut open my finger, changing my fingerprint. Head surgery for melanoma gave me a scar so facial recognition doesn't work anymore, blood vessel burst in my eye, so iris scan changed. And so on.

They're fine for a convenience, but that's it. They're nothing more than a pin, and you will have to fall back to password or authenticator or something else, sooner or later.