I remember a while back Apple filed a patent that allows concerts to disable iPhones cameras if a certain signal is emitted from the stage. Apple never implemented this, but my pessemistic ass always try to think of worse case scenarios, like being used by government. Do you think this could occur in the future?
Source: https://www.bbc.com/news/technology-36672001
You can search “Apple Concert Disable Camera” and find more about it.
If this kind of thing becomes widespread, then people will find a way to broadcast fake anti-camera signals as well. Imagine a thief breaks into your house and you want your security cameras to record them… but guess what, the thief broadcasts an anti-camera signal and they all switch off, completely neutralising your security system. “Unintended side-effects”