Hello WHATWG,
Recently, multiple governments have been pushing for better parental controls.

So i got this idea of introducing a standardized content rating for websites.
Websites with certain types of content would provide a HTTP response header like this:

Content-Rating: adult; category="pornography,nudity,explicit"

Browsers could then block this content if parental controls demands it.
Obviously, it is not a watertight solution, but i believe it's better than what we currently (do not) have.
And it would be more privacy-friendly than needing to upload privacy-sensitive information to unknown websites.

Members of WHATWG, what is your opinion?
Would it be a good or a bad idea? 🤔