You can just use a different porn site, there are millions of them and someone who wants to find them (horny teenagers) will find them. I will let you figure out yourself if the content on those sites is less harmful.
See also https://en.wikipedia.org/wiki/Chilling_effect
If this is true, then this censorship is a terrible tragedy. I still would like government imposed ID age verification for porn though.
Edit: Judging by the spike in downvotes on this comment I can see assumptions are being made about my intentions.
You can limit pornography and not limit access to sex education services, or LGBT communities as they are not pornographic.
But if there was an LGBT forum posting LGBT pornography, then yes, it too should have age verification.
You can just use a different porn site, there are millions of them and someone who wants to find them (horny teenagers) will find them. I will let you figure out yourself if the content on those sites is less harmful. See also https://en.wikipedia.org/wiki/Chilling_effect