Meta announced Thursday that it will close the Instagram and Facebook accounts of Australian users under age 16 early next month as the country’s landmark social media ban begins to take effect.

The California-based tech giant said it had begun notifying affected users to download their contacts and memories before their accounts are deleted from its platforms, starting from Dec. 4, sparking concerns about potential privacy violations and shrinking spaces for young people.

The world-first law comes as lawmakers across the globe wrestle with the impacts of teens’ internet access , with the European Union also considering age restrictions on social media use, while the U.K. has imposed mandatory age checks for sites likely to contain adult content.

Australia has earned a reput

See Full Page