No.

Mandate that OS vendors for computing devices (desktops, mobile phones, consoles, etc.) must provide parental controls and instructions on how to set them up.

Then legislate in 2 years time, any parents found that they have not implemented the parental controls are liable for parental negligence charges.

It’s on the parents to regulate what their kids watch and it’s on the tech companies to provide them with the tools.

There you are, I’ve fixed the “what about the innocent children’s minds?” issue without causing a privacy problem.

You’re welcome.