[shadowgovt]

> liqour stores and porno shops, for example, who already seem to do an acceptable job of checking ID without destroying people's privacy

The difference being, of course, that as an adult one can simply refrain from frequenting a liquor store or porno shop if one chooses not to.

It's not practical to refrain from using a computer while participating fully in modern society. The UN has indicated Internet access to be a human right.