Why repeat the same argument if it clearly hasn't worked? Do you expect it to suddenly become effective?
Change in behavior can only follow from change in incentives. Parents must be held legally liable if they allow their children access to social media. That means jail time for negligence.
Supposedly the incentive already exists because parents want their children saved from the harms of facebook and social media. The story is that parents are clamoring for the government to do something about it. I don't think parents really are, or where they are the expectation is that the social media companies will be forced to change their behavior, not that parents will be forced to start parenting their children or be forced to provide a scan of their face and passport every time they do an internet search.
The government has just decided to fall back on "think of the children" as a way to implement more surveillance and control.
Why would we even consider jailing parents before banning social media from kids and jailing Mark Zuckerberg for pushing it on them?
The power imbalance between individual parents and big tech is immense.
How can we be mad at random parents for not defeating the most powerful and rich people in history?