> A government could implement the equivalent of China's great firewall. Even if it doesn't stop everyone, it would stop most people.

Porn is not just political information about human right abuses, government overreach or heavily censored overview of concentration camps for "group X". People can live just fine with government censorship buying into any kind of propaganda.

Kids would find a way to access porn though. Whatever it VPNs, tor or USB stick black market. Government cant even win war on drugs and you expect them to successfully ban porn. What a joke.