You are arguing against yourself. In the first paragraph you say that the parents should keep kids from social media.
In the second, you say that it would be a violation of privacy if parents would keep kids from social media.
Kids need policing, it’s going to need to be done by the parents no matter what the laws are. Personally, I don’t think the laws matter much in this regard.
They don’t, as others have pointed out. It’s just a standard single board computer with some addons and a case.