Your proposal also doesn't address the other domain that these legislators are targeting, which is addictive content.

That sounds simple to me. If a type of content is addictive then require the RTA header.

- Adult content, or possible adult content.

- User contributed or generated content (this covers most of social media)

- Site psychological profiles that are deemed addictive (TikTok and their ilk)

Overall we are describing things that are harmful to the development of the minds of small children. If adults wish to avoid such content they can create a child account on their device for themselves to be excluded from this behavior as well. I use a child account in a couple of popular video games to avoid most of the trash talking and spam. I'm not hiding my age as the games have my debit card information but rather I opt-in to parental controls.