For starters, zero monetization of any social media content involving children.
Second step, zero public posts involving children, maybe with some narrow carveouts.
Second step, zero public posts involving children, maybe with some narrow carveouts.
"I'm sorry mister, but we can see chidren playing in the park at 44:28 in the hour-long documentary you've produced, so we had to remove the video."
/s
Implementing your proposal is also unreasonable: before one took a photo of their spouse in the park, they would have to clear the background of all persons or get their explicit consent.
If there was a protest outside my business, could I post a photo of the crowd online? What if it were a riot?
What if, as I and a large crowd were peacefully leaving an event, I lifted my camera above my head and blindly took a photo of the mass of people shoulder to shoulder?
Many places have laws which would prevent someone from taking a photo of an individual and selling copies of that photo without the subjects permission; but these laws don't usually apply to someone in the background or a crowd shot, and they don't apply to non-commercial use or some commercial uses, including journalism.