Children are accessing pornography at younger ages than ever before - many before the end of primary school. With the internet and smartphone technology, it's almost impossible to control.

And the range of material they're looking at is vast - everything from explicit sex to violent acts and bestiality.

There are different views about how to deal with this. Some believe that children should be taught about pornography in the classroom, while others are worried that that could just pique their curiosity.