I think the roadmap could be as follows:

1. A standard appears to communicate that you don't want to be filmed (let's say QR code) 2. Some consumer-friendly company follows to implement it 3. EU publishes a directive in Europe for devices to respect this requirement (with some exceptions for security surveillance, etc) 4. Eventually even some of USA companies follow on with this practise

I have no answers to your questions but a few things ping ponging around in my head landed on "lewd content". This would not help government regulations and might even violate some rules but much like law enforcement officers blasting copyrighted music to keep videos of them offline there could probably be something similar to keep recorded content from being rebroadcasted / published.

Perhaps there is a way to create clothing that when viewed by the human eye appears "normal" but then when viewed by a camera will appear highly offensive and perhaps even contain keywords that big platforms will go out of their way to censor.

Maybe it's a dumb direction to think on my part or a dumb idea in general, I don't know.