The previous solution to this was that parents booted their kids out of the house and made them play outside. This has somehow gone from normal parenting to abusive behavior that could get you arrested in some places with a possibility of losing the child.
So instead, we throw tvs, ipads, and phones at them just so we can get a modicum of quiet. Not surprisingly, each one of those is bad for the kid. The developmental problem is screen time but the scary one is strangers on the Internet. Elsa Gate upset a lot of people, and that's not the worst thing that happens.
Policing the Internet is a bad decision. Any Internet Safety Committee will eventually be staffed by the people you would least like to be there. That's especially problematic because one person's bad guy is another person's hero a lot of the time. Although this is the inevitable future due to increasing clamor by Internet companies for regulatory capture, it won't even be effective.
Parental controls never work. Your kid has way more time and motivation to figure out workarounds, even if the parents and the company set everything correctly. Everyone also knows that there will be at least one friend whose parents don't care. This is true whether the parental controls are local or done by a central committee.
The only solution to this mess is:
* Remove the insane laws and policies that prevent parents from letting their children play outside, especially unaccompanied.
* Educate parents on the importance of moderating and monitoring electronics use.
* Educate parents on how to educate their children about the dangers of the Internet, especially social media, pornography, and pedophiles.
* Accept that some parents don't care and will neglect their children no matter what you do. Instead, empower the parents that do care to easily and safely raise their children.