The case for
Young people's mental health has worsened. In England, the share of 8 to 16-year-olds with a probable mental disorder rose from 12.5% in 2017 to 20.3% in 2023. One of the strongest natural experiments so far, the staggered arrival of Facebook at US colleges, found that it worsened students' mental health, particularly depression, by encouraging unfavourable comparisons with others. If social media can harm university students in this way, younger teenagers are unlikely to be better protected. (NHS England, 2023; Braghieri et al, 2022)
The current age limit is not working. Most platforms already set a minimum age of 13; however, Ofcom found in 2025 that 40% of under-13s had a social media profile. A limit that platforms do not enforce protects no one. A legal ban, enforced by a regulator with the power to act against companies that break it, would place the responsibility on the platforms instead of on parents and children. (Ofcom, 2025a; DSIT, 2026)
A shared rule solves a shared problem. Parents who keep their child off social media risk leaving that child out of the group chats and plans their friends are making. A law gives every family the same starting point, so no child is the only one without an account and no parent has to hold the line alone. This helps to explain why 9 in 10 parents who responded to the government's 2026 consultation backed a ban. (DSIT, 2026)
It can be done, and others are doing it. Australia's ban took effect on 10 December 2025, and within weeks platforms had deactivated, removed, or restricted more than 4.7 million accounts belonging to under-16s. In the UK, the riskiest services have had to use highly effective age checks since July 2025 under the Online Safety Act. As a result, the tools needed to enforce an age limit are already in use, and the question is whether to apply them to social media itself. (Australian Government, 2026; Ofcom, 2025b)