Australia is leading the way as it has become the world's first country to ban children under the age of 16 from using social media. But the move hasn't come without controversy.

The social media accounts of Australians aged under-16 must be deactivated, with companies facing fines for not complying.

They will not be able to set up new accounts and existing profiles must be deactivated - while companies could face fines for not complying.