It would never work
Typical Gov misunderstanding of how technology works.
Let's assume there's a smut site at foo.com. So accessing that requires an age verification check. What if someone accesses it legitimately (age verification passed) and then copies the material to bar.com, Whatsapp, Twitter, (insert myraid of other services here which might not have the same check)?
Oh yes, now everyone can still access it.
This is much the same as you can build all the copy protection you want into a Bluray disc. What's to stop someone playing it and then recording the playback with a cellphone? How can you police that? Sure some quality might be lost but it's not exactly impossible to circumvent the original protection and distribute the material.
Except now it's being distributed in more ways that you can't really keep tabs on.
This is the same thinking as whichever Gov cretin came up with something along the lines of "we need to find a way to delete a photo off the Internet" and thought this was something that, legitimately, tech communities were capable of solving. Ignoring the obvious point that if it's copied and distributed there's no way of knowing exactly where it's been distributed to. Which is also a vicious circle in that it can be done repeatedly.
Biting the hand that feeds IT
