At a time when experts have raised concerns over the impact of social media on children, Australia's government has said that it will introduce "world-leading" legislation to ban children under the age of 16 from social media. The big question is should children be barred from social media? Is that the right thing to do? From poor self-esteem to cyberbullying, children are often exposed to the dark side of social media. How can one prevent that? Should there be regulation? Will that lead to more blocking? Does regulation work at a time when tech has a workaround for everything? How can young people be kept safe?