They don't have a lost-kid feature?

In China, kids are accustomed to face recognition early.[1] The kids are checking into school via fare gates with face recognition. Here's an ad for Hikvision surveillance systems showing the whole system.[2] Hikvision has a whole series of videos presenting their concept of a kindly, gentler Big Brother. This is probably the most amusing.[3]

Amazon's concept is in some ways more powerful. They don't need full coverage. Just sparse, but widespread coverage. Anything that moves around will pass through the view of cameras at some point. Suspicious behavior can be detected in the back end cloud processing, which improves over time.

Flock has the same concept. Flock coverage is sparse in terms of area, but widespread.

"1984" was so last cen.

[1] https://www.youtube.com/shorts/SMKG8aLTJ38

[2] https://www.youtube.com/watch?v=XnHFJz-u85A

[2] https://www.youtube.com/watch?v=otAuH6FDhgw