But also, for child protection, this is a double-edged sword. Yes, social media exposes some children to things they should never see, but it also exposes children who've been brought up in terrible situations to the possibility that what they're facing is wrong and an alternative world exists. Britain has for decades been obsessed with the danger of strangers, but statistically it has always been the case that more children are under threat from members of their immediate family and community.

That's such an unimaginably horrible realisation that we shy away from recognising it, but it's true and we have to confront it if we want to keep children safe. Locking them out of online contact is likely to isolate that block of vulnerable children to a worse degree. Furthermore, when children go on social media anyway, which they will do, they're now doing something illegal, which makes it much *harder* for them to ask an adult for help when something goes wrong online.