Is watching pornography harmless for children or a cause for concern? Students – even those in primary school – are using smartphones and laptops to show pornographic material to their friends. And the range of material they’re looking at is vast: everything from explicit sex to material involving fetishes and violence. This week Insight looks at how children are accessing porn, what they’re looking at, whether it’s influencing their sexual behaviour and where the responsibility should lie when it comes to educating children about sex and pornography.