Governments around the world are racing to redraw the digital boundaries of childhood, pushing sweeping bans or strict limits on social media use by minors. The measures, framed as a response to mounting evidence of online harms, are reshaping how young people will be allowed to interact with the internet’s biggest platforms.

Australia is the most aggressive trailblazer. It has barred children under 16 from using major social networks including Facebook, Instagram, Snapchat, TikTok, X, YouTube, Reddit, Twitch and Kick. Messaging apps such as WhatsApp and YouTube Kids are exempt, but platforms that fail to keep underage users out face penalties that can reach tens of millions of dollars. Companies are being told to deploy robust age checks that go far beyond self-declared birthdates.

Across Europe, a patchwork of bans is emerging. Austria plans to block social media for children up to 14, while Denmark is preparing a ban for under‑15s backed by a cross‑party coalition and supported by a new “digital evidence” app for age verification. France has approved a law cutting off social media access for under‑15s and tightening rules on mobile phones in schools. Poland, Slovenia and Spain are drafting similar restrictions, generally targeting users under 15 or 16 and focusing on mainstream networks such as TikTok, Snapchat and Instagram.

Germany’s conservatives have floated a ban for under‑16s, though the governing coalition has signalled unease about an outright prohibition. Greece has committed to blocking social media for under‑15s, citing rising anxiety, sleep disruption and the “addictive design” of platforms.

In Asia, Indonesia is moving to bar under‑16s from social media and other popular online services, starting with YouTube, TikTok, Facebook, Instagram, Threads, X, Bigo Live and Roblox. Malaysia has announced plans to prohibit social media use for children under 16 and is working on how to enforce the rules.

The United Kingdom is preparing one of the most far‑reaching regimes. The government has pledged to ban social media for under‑16s on platforms such as Snapchat, TikTok, YouTube, Instagram, Facebook and X, while leaving messaging apps like WhatsApp and Signal outside the scope. It also wants age gates on AI “romantic companion” chatbots, limiting them to adults.

Supporters argue these measures are overdue protections against cyberbullying, addiction, mental health problems and online predators. Critics warn that invasive age checks threaten privacy, that bans may be easy to evade and that they risk sidelining young people from the digital public square. Yet, despite the controversy, momentum for child social media bans is clearly building.