Australia banned children under 16 from social media in December 2025. It was the first country in the world to do so, covering platforms including TikTok, Instagram, Facebook, YouTube, Snapchat, and X. Platforms that fail to take reasonable steps to enforce the ban face fines of up to AUD $49.5 million.
The chain reaction came quickly. Indonesia followed in March 2026. Malaysia in June 2026. Brazil passed a related law requiring parental linking of accounts. The UK announced its ban on June 15, 2026, modeled directly on Australia's approach and set to take effect in spring 2027. France, Denmark, Spain, Germany, Austria, Poland, and Slovenia are all in various stages of passing their own restrictions. A nonprofit tracking the trend counts active government efforts in more than 40 countries.
The problem is that the bans are not working as advertised. A study published in The BMJ examined Australia's results three months in and found that over 85% of under-16s were still using restricted platforms, mostly through existing accounts that the platforms had failed to identify and remove. Separate Harvard-linked research found nearly 75% of 14 and 15-year-olds were not complying. The main reason was social: almost no one around them was complying either, so stepping off felt like dropping out. Two-thirds of those who stayed on said they would prefer time limits over outright bans.
The UK says it learned from Australia's stumble. The government has asked its communications regulator, Ofcom, to study stronger age verification methods. The plan is to require platforms to confirm that any new account holder is 16 or older, potentially through facial scans or ID checks. That means every adult in the UK will also have to verify their age to keep using social media, which has raised its own concerns about privacy and data security.
The legal environment for platforms is shifting separately. In March 2026, a California jury found Meta and YouTube liable for deliberately designing their apps to be addictive and failing to protect a young user who suffered serious mental health harm. A New Mexico jury ordered Meta to pay $375 million for failing to protect children from exploitation on its platforms. Those two verdicts follow a new legal strategy: instead of arguing about what content platforms host, lawyers argued that the design of the products themselves is defective, the same way a product that electrocutes its user is defective. That framing could apply to the more than 1,500 similar cases still pending across the US.
The comparison to the 1990s tobacco litigation is being made in courtrooms and government offices now. The parallel is imperfect but useful: tobacco companies also argued their products were a matter of personal choice, also had internal research showing harm, and also faced a wave of state-level lawsuits before the industry was restructured. The social media industry is earlier in that same arc, but the direction is no longer in doubt.
For business operators, the practical question is what happens next. Platforms will face growing compliance costs and legal exposure across dozens of markets simultaneously, which tends to accelerate product changes. Advertising that targets young audiences will become harder and more legally risky. Any business that runs marketing campaigns on Instagram, TikTok, or YouTube should expect the audience composition data from those platforms to shift, and the tools for targeting younger demographics to disappear or be restricted. The platforms themselves are already adjusting, adding parental controls and content restrictions, not out of goodwill but because the legal and regulatory cost of not doing so is rising fast.