Blocking access to pornographic websites is the responsibility of parents or other responsible adults absent a federal ID verification system that would enable websites to reliably block kids (similar to S. Korea).

You can justify almost any amount of censorship based on "thinking about the kids". But our society is built for more than just the first 20% of human life. The proliferation of this argument that everything from the internet to IRL bookstores need to be censored to protect children starts from a good place, but it jumped the shark a long time ago.