The things you've listed are obviously reasonable, but the laws being proposed for digital parenting are very much not the same as those benign, locally-implemented guardrails. Take the recent Illinois law as an example: they're mandating all Internet-capable operating systems to broadcast the user's age bracket to all software that requests it. That effectively means you can't communicate online if you don't comply. The physical equivalent of that is making it illegal for you to see, hear, or talk at all, unless you utter the magic words "I am x years old". That is compelled speech, and it's deeply incompatible with the First Amendment.