Facial recognition software is behind a lot of security camera systems in airports, subways and other public places. It contains software that scans for criminals. The fact is it's scanning every face. The same goes for a growing amount of digital advertising signs where a camera and software checks if and how many people are watching it.
Using biometric info like fingerprints (iphone, entrance to a theme park, airports) is common business. But young and older people have problems with these systems due to their skin. A face is like a fingerprint. There are rules and regulations what can be used from personal information. I worked at a bank and had insight in all financial information from customers at the bank. But the system logged every single thing I did when I dove into that information. There always needed to be a good reason to do that.
I for one am excited for this system. Sitting in a wheelchair the whole fingering myself into a park is a difficult situation. Just scan my face from a distance when I'm wheeling in and I'm fine. All the extra's behind it are great as long as I can tell the system what I want and don't want.