Amy Orben and colleagues
MRC Cognition and Brain Sciences Unit, University of Cambridge
Their 2022 Nature Communications study found age windows where social media use and lower life satisfaction are most closely linked: around 11 to 13 for girls, 14 to 15 for boys, and 19 for both. The work is correlational, the effects are small, and Orben herself says the causal evidence on smartphones and children remains limited.
Where we align: The windows are the strongest peer reviewed basis for staging readiness by age rather than switching it on at a birthday, and our KS3 timing leans on them.
Where we hold back: We never cite this work as proof that social media causes mental illness, because its authors say it shows no such thing. Where the evidence is unsettled, our pages say so.
Source: Nature Communications, 2022 ↗Sander van der Linden
Social Decision-Making Lab, University of Cambridge
People resist manipulation best when they practise the techniques in weakened form first. His inoculation studies with Google Jigsaw, published in Science Advances, reached tens of millions through prebunking videos. Responding to the under 16 ban, he argued bans alone lack an evidence base and called for major investment in digital literacy, and Cambridge coverage describes him discussing a social media passport built on gradual, supervised exposure.
Where we align: Inoculation is exactly how our misinformation modules teach: meet the trick in the classroom before the feed serves it for real. And gradual, supervised, earned exposure is our passport thesis stated by a Cambridge lab.
Where we hold back: His passport is an idea discussed in public research commentary, not our product, and he has no connection to us. We simply built the thing the argument points at.
Source: University of Cambridge, June 2026 ↗Andrew Przybylski and Pete Etchells
Oxford Internet Institute and Bath Spa University
The largest studies of teenage screen use found moderate use was not linked to harm, and both argue the useful question is not how much screen time but what it contains and what it displaces.
Where we align: Calibrated guidance over blanket rules is our first non negotiable: never a flat allow or deny, always a pathway.
Where we hold back: They would ask us to justify any specific age we stage a skill at, so every stage decision on this site says why it sits where it sits.
Source: Psychological Science, 2017 ↗The school phones evidence, both sides
University of Birmingham 2025 and the Norwegian School of Economics 2024
The first worldwide study of school phone policies, in The Lancet Regional Health Europe, found restrictive policies alone were not associated with better wellbeing or attainment, and its authors called for comprehensive approaches reaching home as well as school. A Norwegian study found middle school phone bans did improve girls’ grades and cut bullying. Both are real findings and we cite both.
Where we align: Bans help inside the school gate. They do not build the judgement a child uses at home, at a friend’s house, and at sixteen. That gap is precisely what a taught curriculum fills.
Where we hold back: Neither study tested our curriculum. We claim the gap, not the cure.
Source: The Lancet Regional Health Europe, 2025 ↗Candice Odgers
Professor of Psychological Science, University of California, Irvine
Writing in Nature, she warned that the claim phones are rewiring children’s brains and causing an epidemic of mental illness is not supported by the science, and that blame aimed at social media can distract from real causes.
Where we align: Her test is our editorial standard: nothing goes on these pages that could not be defended to her.
Where we hold back: She would challenge any implied claim that our programme improves mental health, so we never make one. The passport records preparation, never a health outcome.
Source: Nature, 2024 ↗The Royal College of Paediatrics and Child Health
The UK professional body for children’s doctors
Its screen time guidance found no evidence for a single safe or harmful threshold and recommends families negotiate screen use around each child’s needs, protecting sleep, activity and time together.
Where we align: Negotiated, child specific screen agreements are what our routines modules teach children to build with their families.
Where we hold back: The guidance predates the ban debate, so we cite it for the negotiation principle, not for any position on the ban.
Source: RCPCH guidance ↗