About 550,000 accounts were blocked by Meta during the first days of Australia's landmark social media ban for kids.
In December, a new law began requiring that the world's most popular social media sites - including Instagram and Facebook - stop Australians aged under 16 from having accounts on their platforms.
The ban, which is being watched closely around the world, was justified by campaigners and the government as necessary to protect children from harmful content and algorithms.
Companies including Meta have said they agree more is needed to keep young people safe online. However they continue to argue for other measures, with some experts raising similar concerns.
"We call on the Australian government to engage with industry constructively to find a better way forward, such as incentivising all of industry to raise the standard in providing safe, privacy-preserving, age appropriate experiences online, instead of blanket bans," Meta said in a blog update.
