British Prime Minister Keir Starmer says a social media ban for under-16s is now the government’s preferred answer to a problem parents have been trying to manage one screen-time argument at a time: children being drawn into online spaces designed to keep their attention and, too often, expose them to harm.

Speaking at a news conference on Monday, Starmer said the United Kingdom would move to join the growing number of countries tightening limits on children’s access to major online platforms. The proposed ban would apply to services such as TikTok, Snapchat and Instagram, with the government also looking beyond traditional social networks to gaming and livestreaming platforms where children can communicate with strangers.

Why Starmer says the ban is needed

Starmer framed the plan as a child-safety measure and a test of national values, saying Britain should not accept technology companies setting the terms for childhood online. He argued that platforms are exposing children to material that is “dangerous” and “designed to be addictive.” The point was not subtle.

“It is clear to me a full ban is the right choice,” he told reporters.

He said the measure would gradually change what parents discuss with their children and what children expect from digital life. In his words, the ban would “make a huge difference,” making children “safer” and “happier” while giving them “more time, more security, more freedom to grow up, more opportunity.”

That is the emotional center of the announcement: not just regulation for its own sake, but an attempt to take some pressure off families who are left negotiating with companies whose products are built to keep kids hooked.

What platforms and features could be affected

The clearest target is social media used by children under 16, especially major platforms where feeds, messaging and recommendation systems can keep young users on the app for long stretches.

Starmer also said the government would act against gaming and livestreaming services that allow children to speak with strangers. He compared that online contact with what parents would never knowingly permit in person.

“Is there a situation in the offline world where you would just let your child pair up with a stranger, an adult that you don’t know anything about? No, so we’re taking action on that,” he said.

The government may also extend controls to under-18s, not just under-16s. According to a government statement, ministers will consider:

  • Overnight curfews for younger users
  • Breaks in infinite scrolling
  • Additional limits on app use and online engagement
  • Further measures to be detailed in July

Those details matter because the hardest part of any online child-safety law is rarely the promise itself. It is enforcement, age checks, platform compliance and the inevitable migration of young users to whatever app has not yet been named in a government document.

When the UK plans to bring it in

Starmer said he hopes the regulation will pass by late December, allowing the ban to take effect in spring next year.

The timing suggests the government wants to move quickly, but not rush it. The coming months should bring more detail on how the policy will work, how companies will verify ages, and what penalties could apply if platforms fail to comply.

The announcement follows government-led consultations in which British teenagers trialled social media bans and app time limits. That process appears to have helped shape the government’s view that softer restrictions alone may not be enough.

For parents and young people, the proposed timeline also means the debate is about to become practical rather than theoretical. It is one thing to say children should spend less time online. It is another to decide who checks, who blocks access, and what happens when a 15-year-old discovers a workaround in roughly seven minutes.

How other countries shaped the decision

Starmer said the UK proposal was influenced by Australia, which became the first country to ban people under 16 from social media in December.

Britain is not moving in isolation. Canada’s culture minister last week introduced a bill that would bar anyone under 16 from holding social media accounts. The Canadian proposal would also require artificial intelligence chatbot platforms to limit the creation of harmful content.

Together, the moves point to a broader shift among governments that once relied heavily on voluntary platform rules and parental controls. The new direction is more direct: age-based restrictions, legal obligations and a clearer message that children’s online access is no longer being treated as a private matter between families and apps.

What tech companies are saying

At least one major platform is already pushing back. A spokesperson for YouTube warned that a blanket ban could drive children toward “less safe services.”

That argument is likely to become central as the proposal moves forward. Platforms may say that regulated mainstream services are safer than smaller or less visible alternatives. Governments, meanwhile, are increasingly saying that mainstream services helped create the risk in the first place.

The result is a familiar but consequential fight: children’s safety, corporate power, parental responsibility and the business of grabbing attention, all packed into one policy fight. Starmer has now made clear where he wants Britain to land. The harder part comes next, when the government has to turn a promise of protection into rules that actually work.