Basically this, it's been years now since Pornhub purged anonymous content (and by extension, pirated material), so anything that targets it is redundant.

And generally far less scrupulous around content.

You underestimate the creativity of highly motivated teenage boys searching for adult material.

Even if they don't know now, put an obstacle in their way and they quickly find a workaround. Hell, as a kid the we learned how to bypass bios password within a day, because me and my siblings very motivated indeed. The trick was to not let parents know that we knew. That part lasted a week. We got greedy.

In other words, I am sure some kids will learn.

I'm guessing that (just like actually happened when I was their age) one kid will figure it out (or read about it, or have an enabling parent tell them how to do it under the presumption of good reasons) and then tell all their friends how to do it.