What I never understood
What I never understood, is if they can block "unsafe" and "unsuitable" sites, why don't they have an option to block adverts. Or even better, some port blocking options. Less than 0.05% of users need access to inbound FTP, HTTP, RDP etc. They could massively reduce traffic and improve security by letting you choose which ports to open at an ISP level... basically an ISP level firewall. 95+% of people don't need ANY inbound ports open.