Australia will impose a social media blackout for children under 16 to tackle the growing mental health crisis among young people. But will the ban be effective?

Australia said on Wednesday it will add YouTube to sites covered by its world-first ban on social media for teenagers, reversing an earlier decision to exempt the Alphabet-owned video-sharing site and potentially setting up a legal challenge.

The Australian government has announced that YouTube will be included in new legislation that bans children under the age of 16 from using social media.