If the government wanted to do something it would enforce optional controls for the bill payer, and provide decent training (via videos and in person in libraries) on how to use parental controls.

I tried setting up parental controls on Fortnite and it was a nightmare, having threats multiple accounts with multiple providers, it felt very much designed to force people to go “ahh forget it”.

> it would enforce optional controls for the bill payer,

They do; in the UK, if you want to have access to porn, you need to tell your ISP and they will unblock it.

Of course, that's a game of whack-a-mole because you can render porn in Minecraft servers or join one of many communities on Whatsapp or Discord if needs be. It mainly blocks the well-known bigger porn sites.