In that case: sorry to blow up on you. I have seen to many comments on here claiming these things while being 100% serious. I just saw your comment and incidentally had time to write the above for once, so, here we are.
I agree that there’s no way to completely cut teens off from porn. Your torrent example is perfectly demonstrating this.
But I also do not understand the current outrage at anything trying to improve the situation, even when it’s not some stupid “scan your face” scheme.