Until your daughter comes home with a boyfriend with a fucked up sense of what sex is and ruins her day/week/month/year/life.
I'm certainly not pro government tracking anything I do, let alone porn watching, but if I see how my own kids get exposed to it through friends. No matter how much I try to educate them, friends still show them absolute vile stuff...
Fair enough. I'm raising my kids in a similar fashion. I dislike the sexual repression in the west (from which I unconsciously still suffer). But I'm still worried about other boys :)