UK to impose default midnight social media curfew for 16- and 17-year-olds, with opt-out option

The curfew and its features

Britain is adding a new layer to its forthcoming social media restrictions for young people. As part of a wider plan to protect adolescents, apps such as Instagram, TikTok and YouTube will become inaccessible by default for 16- and 17-year-olds from midnight to 6 a.m., Technology Secretary Liz Kendall announced on 14 July. The measures will also automatically disable features that prolong engagement, including auto-playing videos, infinite scroll and algorithmically tailored feeds. The default restrictions can be removed if the user actively changes the settings, a concession that has drawn criticism from campaigners who argue it weakens the curfew.

These measures will be crucial in helping young people get the sleep they need, focus on school and college, and spend more quality time with family and friends.

The curfew builds on the government's earlier pledge to ban social media entirely for under-16s, aiming to create a softer transition once children reach the age of 16 rather than an abrupt switch to unrestricted access. Regulations are to be laid before parliament by the end of 2026, with enforcement targeted for spring 2027.

What drives the compulsive scrolling

Experts point to a neurological basis for why teenagers struggle to put down their devices. Matteo Parissi, a forensic psychologist, explains that the prefrontal cortex, responsible for inhibition control, does not fully mature until the mid-20s, leaving adolescents especially vulnerable to endless content feeds. The design of social media, he notes, mimics a slot machine: each swipe offers the possibility of a reward, and the anticipation of a 'like' or engaging post triggers dopamine, the brain's chemical messenger for motivation and pleasure.

Our brain does not know when the next rewarding piece of content will appear, so each swipe while scrolling has the possibility of getting a reward. From a dopamine perspective, the anticipation of getting rewarding content matters even more than the rewarding content itself.

Without a natural stopping point, scrolling can persist for hours, hijacking the brain's reward system and disrupting sleep and concentration.

Evidence from a family pilot

The policy direction is backed by a pilot study involving 309 families with children aged 13 to 17. Over one month, three restriction types were tested: a 15-minute daily per-app cap, a nighttime block, and the complete removal of major social apps. The trial's overnight block was stricter than the government's proposal (9 p.m. to 7 a.m. rather than midnight to 6 a.m.), yet families consistently reported improvements in sleep, attention and family life. The nighttime curfew emerged as the easiest measure to maintain and delivered the most consistent sleep benefits.

Definitional and enforcement gaps

While the government has confirmed that major platforms like Instagram, TikTok and YouTube will be caught by the ban, a precise legal definition of 'social media' remains unresolved. Under the Online Safety Act, user-to-user services that enable social interaction and use algorithms are the intended target, yet that category also covers online marketplaces, dating apps and collaborative sites like Wikipedia. DSIT has said the definition will draw inspiration from Australia's approach, but further exemptions have not been detailed. Lawyers are warning platform operators that the boundaries are still unclear, and any exclusion list will need to withstand scrutiny from competitors left out.

Australia's own experience adds caution: a team that advised on its children's social media ban found platforms stumbling at the very first step of implementing age-verification checks, which rendered the ban ineffective. Similar hurdles could affect the UK's enforcement.

Opt-out and parental scepticism

The provision that allows teenagers to switch off the curfew has provoked pushback from campaigners like Ellen Roome, whose 14-year-old son died in 2022 after a harmful online challenge. She questioned the measure's effectiveness, comparing it to placing an alcohol bottle within reach of a child.

I think setting a limit that can be removed is not enough, it would be like leaving a bottle of alcohol out of reach that can be easily reached.

Online commentary on Reddit echoed the frustration, with some users describing the curfew as 'ineffective and useless' and likening it to easily ignored speed-limit warnings. Others noted that existing parental-control features already offer comparable time restrictions.

What happens next

The government expects the first set of regulations to be tabled before parliament by the end of 2026 and to take effect in spring 2027. Alongside the curfew, new safeguards for AI chatbots used by under-18s will require built-in breaks and filters against dangerous or unverified mental health advice. The timeline remains contingent on resolving the legal definition of in-scope platforms and clarifying enforcement mechanisms.