So not all parents are responsible parents. And you can't trust irresponsible parents to do the right thing.
That is the argument for public school breakfasts, lunches, and dinners
That is the argument for public school food police seizing brown bag lunches
That is the argument for public school teachers, administrators, and principles taking on parental responsibility.
That is the argument for Head Start and Early Head Start.
That is the argument against school choice.
That is the argument for WIC, AFDC, and TANF.
The government should not be the substitute parent for children who have irresponsible parents.
We cannot have it both ways. We cannot demand the government filter the Internet access of irresponsible parents for the good of society but complain when the same government meddles in the parenting of responsible parents.
With liberty comes responsibility.
There really are some things that a culture, to preserve itself, must control. This is one of them.
If parents then want to give access to pr0n to their children, they can overtly give them the password.
But I feel like I'm WAY too late with this. The horse is out of the barn.
The short version: "The less virtuous a people, the greater its need for laws."