You do know that most hourly jobs have you clock in and out either at a kiosk or computer? This is just using facial recognition instead of a password to clock in and out.
Having someone else clock in for your isn't always cheating. For example, leaving early so you can drop by the post office on your way home from work to drop off the company mail.
Or the opposite where my wife works: People will punch in for her because she has to go to an off-site meeting or event.
We have the technology.
I know a factory in Chicago that still has huge time-card punching machine from the late 1800's. It's enormous, and looks like a cast iron wheel of fortune. Very cool.
Somehow the company has managed to function for 150 years without adding facial recognition to it.