This week: the government bans social media for under-16s and sets an age limit on companion chatbots; more scientists point to a lack of firm evidence on all of this; two major reports land on how children actually use AI.
🔍 This week I’ve been thinking about…
Unless you’ve been living under a rock (and if you have, can I join you there??), you’ll know that the UK government announced on Monday that it will ban social media for under-16s and force AI “romantic companion” chatbots to enforce an age limit of 18. Five days earlier, the neuroscientists best placed to judge the evidence had told a select committee they can’t prove much of what the announcement assumes — and that the gap is widest where the new AI rules sit.
Appearing before the Science, Innovation and Technology Committee, Professor Sarah-Jayne Blakemore of Cambridge was asked what we know about the impact of social media on the adolescent brain. Her answer, as reported by The Register, was “almost nothing” — a few small studies, unreplicated, purely correlational. Professor Denis Mareschal of Birkbeck said much the same about young children: very little causal research, almost everything correlational. Pressed on whether neuroscience could identify the right age for a social media cut-off, Blakemore said it can’t: individual differences in brain development are vast.
This is not the same as saying there’s nothing to worry about, and the witnesses didn’t say that. Blakemore described how an adolescent’s reward system is highly active while the self-control machinery is still being built, which makes a phone genuinely hard to put down.
But here is the part that matters most for this newsletter, and it’s the part that didn’t make the headline. When the committee turned to AI companions, the answer got fuzzier, not clearer. Blakemore was reported as saying that “we don’t really have any evidence, and that’s one area where I think we really urgently need new evidence.” The open research question she named is the one this whole field turns on — whether children interpret a chatbot “just like they would be interpreting a friend’s behaviour and suggestions and mental states.”
That question is not hypothetical. The Common Sense Media census this week found that one in four children who use AI to discuss their feelings sometimes feel it understands them better than most people do. UNICEF’s brief documents the same parasocial pull and the regulatory scramble around it. So we have a UK government setting an age-18 line on companion chatbots in the same announcement as the social media ban — and the social media ban, on the neuroscientists’ own account, rests on thin evidence, while the chatbot rule rests on almost none.
Again: this doesn’t make either measure wrong. The precautionary principle is a real and important tool. But it’s worth being clear-eyed that the AI half of Monday’s announcement is the part most starved of evidence about what the technology is actually doing to children. We’re going to do our best to help add to that corpus!
📰 Three things worth your attention
1. The Common Sense Media Census: AI Use by Tweens and Teens, 2026 — Common Sense Media
The headline number is that 86 percent of US children aged 9 to 17 now use AI, with about a quarter using it daily. Among children who have used AI to discuss their feelings or personal problems, one in four say they sometimes feel AI understands them better than most people do. That rises among children who find it hard to make friends.
The report is careful where it should be. It states plainly that a single survey cannot tell us whether AI use causes loneliness or whether lonely children are simply more likely to reach for it. That distinction matters, and a lot of the coverage will drop it. This is a US sample of 1,204 children, surveyed in March, so it describes American childhood, not British. But the pattern — heavy use correlating with lower reported happiness, the cause running in an unknown direction — is exactly the kind of finding that gets flattened into “AI is making children lonely” by the time it reaches a parent. It doesn’t say that. It says we need to find out. Which is precisely what Blakemore told the committee. And it’s important to note as a parent that 3 out of 4 children are not at that point. So now is the time for (positively framed) intervention.
2. When AI becomes a friend: child rights risks, harms, and regulatory responses to AI chatbots and companions — UNICEF
UNICEF’s policy brief compares how six jurisdictions — Australia, Brazil, California, China, the EU and the UK — are regulating AI chatbots and companions as of May 2026. The useful thing is the map it draws of a genuinely unsettled field: jurisdictions converging on a common set of measures (risk assessment, age assurance, transparency about the non-human nature of the system) while diverging sharply on whether children’s access to relationship-simulating AI should be blocked at the door or only managed at the output.
It’s a policy document, not a parenting one, but it’s the clearest single account I’ve seen of why a child’s protection currently depends heavily on which country they live in and which service they use. It also names the central tension honestly: commercial incentives push against the very safeguards — filtering, restricting open-ended dialogue — that protect children, producing what it calls a “safety versus engagement” dilemma.
3. £2.5m fund to study how AI tools are affecting learning — Schools Week
This is some of the money backing the call for evidence, in schools at least. The Education Endowment Foundation has opened a £2.5 million fund to investigate whether children are “offloading” thinking tasks — recall, planning, reasoning, drafting — onto AI, and whether that supports deeper learning or quietly erodes it. Its chief executive was plain that robust evidence on the actual impact “has barely begun — especially for learners under age 16.” First findings are expected in 2027. The fund is particularly interested in the effect on disadvantaged learners, where the risk of widening an existing gap is real. It’s the right question, asked properly, by the body schools actually listen to. Expressions of interest close on 30 June. If you know research teams working in this space, worth passing on.
🔁 ICYMI
Screen use by children aged 5-16: call for evidence — Department for Education
Easy to miss under the week’s louder news: the DfE has an open call for evidence on screen use by 5-16s, running until 29 June. It comes in two parts — screen use at home, and screen use in schools — and the home-use evidence feeds an independent Expert Advisory Group developing new parent-facing guidance. If you have evidence to contribute, or just want a sense of where the official guidance is heading, it’s open now.
One for the diary too: UNESCO releases a new parents’ guide to navigating digital life, developed with CLEMI, on 22 June, with a briefing on the 16th. Its framing is worth noting — UNESCO argues for building children’s critical-thinking skills over reactive bans, and points to the limited effect of Australia’s ban (around 70 percent of the target age group reportedly still on the banned platforms a year on) as part of its case.
It’s also worth a glance across the Atlantic: Canada introduced its own under-16 social media bill last week but explicitly declined to set any age limit on AI chatbots, with the minister responsible calling it “too soon.”
🔬 What’s new with CAISE
We’re getting our head around the social media ban. And then building tools for data collection — and training to ensure data collection is done safely!
→ What are you seeing in your school, your research, or your own use of AI this week? Let me know, or share this with someone who is trying to figure it out.


