[beeworker]

For the sake of argument let's assume the only person you hurt by watching porn is yourself, and let's not worry yet about the degree of harm or the potential mitigation from "responsible" usage. (This applies to various drugs, too.) Why would a government that cares about its citizens not step in when there are simple counter-measures with significant gains that stop the majority from doing self-inflicted damage? Even if that majority can come up with rationalizations for the damage? (Like self-flagellation to get closer to God, or brain-cell killing substances "to take the edge off".) I'm not advocating for draconian measures to try and prevent 100% of the people from doing X, and those are impossible anyway when X is readily produced (like alcohol) but there's a middle ground between that and doing nothing while your population withers.