This discussion is about the Internet. I.e. that we already have police and regulate in-person things like selling alcohol to minors, etc, is not a great argument in support of policing information.
replyIf you call pornograpy and violence delivery to children "providing them with information" then sure but most normal people just consider that a bad thing that we'd like to avoid and definitely would like to stop sociopathic tech CEO's from exploiting for profit.
replyBut back to your original point, it's a pretty well-established function of government to protect the children within its borders from being harmed.