Answer:
The benefits would be no longer identity crimes and unnecessary human interaction with devices. The downfall would be threats to privacy and a potential breach of your data.
Step-by-step explanation:
I believe that the benefits outweigh the risks because your data couldn't be as much of a threat to expose when certain devices have "Blink" on them. Which would be to blink during your facial recognition to ensure that it is not a photo.
Hope this helps:)