When the dangers consist of invisible targeted manipulation of thought processes it's a whole different category of risks that kids (and most adults) are not equipped to handle. The effects are playing out around the world as we speak.

I don't know that universal tracking is the answer. I also don't think unrestricted access to children by manipulative predators (companies in this case) is the right answer. But then, I don't think they should have unrestricted access to adults either.