I'm not even convinced that blocking pornography somehow protects children anyway. Pornography on the modern internet largely needs to be sought out and if an adolescent kid is seeking it out I don't see that as a big deal.

I don't know what the culture is like in the UK, but if it's similar to the puritanical shame nonsense prevalent in the US surrounding sex - than filtering the internet seems like an extension of that rather than solving any real problem.

Then of course there's all the associated problems that complicate things when you start restricting speech on a communication medium.

I think this is a really bad idea.