Can two people have face ID on the same phone?

It’s not about some hypothetical «intended», QuickTimeKirk.

It’s about customer use cases.

For instance, with Touch ID, both my wife and I have Touch ID’s on each other’s iPads, so we can have our own “stuff”, but can share and use each other’s devices.

Share your passcode.

You can’t unlock with 2 different faces.

That's not how it is intended.

Only one Face ID on an iPhone.