Reddit has initiated a landmark legal challenge in Australia’s High Court against the nation’s newly enacted ban on social media use by individuals under the age of sixteen, asserting that the legislation infringes on constitutional protections and is misapplied to its platform.

The law, officially commenced on December tenth under the Online Safety Amendment (Social Media Minimum Age) Act, prohibits children younger than sixteen from holding accounts on major social media services and threatens substantial fines for platforms that fail to prevent access.

Reddit’s lawsuit, filed just days after the ban took effect, argues that the restriction violates the implied freedom of political communication embedded in Australia’s Constitution and could have broader implications for digital rights and youth engagement in public discourse.

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In its court filing, Reddit contended that the Social Media Minimum Age law imposes intrusive age-verification requirements that threaten user privacy and force platforms to implement potentially insecure verification systems for all users in Australia.

The company also challenged its categorisation as a social media platform for purposes of the ban, asserting that Reddit functions primarily as a collection of public forums and adult-oriented discussion communities rather than a traditional social networking service.

Reddit underscored that its platform does not drive contact lists or real-time personal interaction in the way conventional social media does, and that many of its communities are publicly accessible without accounts.

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The lawsuit highlights concerns that the measure could isolate teenagers from political and civic discussions that inform their views well before they reach voting age, a key element of Reddit’s constitutional argument.

The company emphasised that its challenge is not about preserving under-sixteen users for commercial reasons, but about protecting the broader principles of free expression, privacy and democratic engagement online.

The legal action follows a separate challenge filed by two Australian teenagers, represented by a digital rights group, that also argues the ban unconstitutionally restricts political communication.

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Australia’s government has defended the law as a necessary and historic measure to protect children from online harms associated with social media use, and officials have signalled they will vigorously oppose the legal challenges.

Platforms including Reddit, Meta’s Instagram, Alphabet’s YouTube, TikTok and others are adapting by introducing age-inference and estimation technologies to comply with the ban’s requirements, even as the broader legal battle unfolds.

Critics of the law point to enforcement challenges and its potential to drive young users toward less regulated digital spaces, while supporters argue it prioritises child safety in an era of pervasive digital influence.

A preliminary High Court hearing is expected early next year to set the course for the full legal proceedings.

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