Imagine: Websites over a certain number of users must publish content-suitability tags. Preinstalled operating systems over a certain marketshare must include software that can filter on said content-suitability tags, which can be enabled during the initial setup process. When parental controls are enabled, websites without tags "fail closed" and don't display. The open web continues to exist, and the long tails of sites, operating systems, and devices stay completely unaffected.

The bill under discussion is being pushed by Facebook purely to absolve themselves of liability. The information flow is completely backwards. Its design actually removes control from parents (websites are responsible for making the decision, so whether a given site is suitable for your kid is made by corporate attorneys), and puts assumed liability on parents (eg "you're negligent for letting your kid access a browser that doesn't broadcast their age").

(I'm a parent but thankfully not yet at the stage where I have to navigate this issue)