In a federal courtroom in Oakland this week, a deputy attorney-general accused Meta of building products to hook children, hold their attention, harvest their data and hide the consequences. It is a case with a headline figure attached, a potential $1.4 trillion in penalties, but the number that should worry British health officials sits elsewhere, in the data quietly compiled by NHS England and the Children's Commissioner over the same period this trial covers.

More than a million children had an active referral to child and adolescent mental health services in England in 2024–25, the first time that threshold has been crossed and a rise of almost ten per cent in a single year. Analysis from the Royal College of Psychiatrists found over half a million children still waiting for treatment, with three in ten of the longest-waiting group stuck for more than two years. The college has gone further, warning that children unable to reach a clinician are turning instead to AI chatbots for support they cannot get from the health service.

The Oakland trial and the British policy response are already entangled. In June the government confirmed plans to bar under-16s from platforms including Instagram, TikTok, Snapchat and YouTube, with implementation expected in spring 2027. That decision draws on precisely the kind of internal evidence now surfacing in the Meta case, material suggesting that engagement among teenagers was tracked and treated as a commercial asset rather than a risk to be managed. For a health secretary trying to justify a ban against an industry that will resist it fiercely, an American court laying out internal emails on "teen time spent" is a gift of political cover.

But cover is not capacity. A ban addresses exposure. It does nothing for the child already on a waiting list, the parent already told there is no appointment for eighteen months, the GP already unable to escalate a referral because the local CAMHS team has no space to take it. The mental health crisis among children in Britain has causes that predate smartphones and will outlast any social media restriction: family instability, poverty, school pressure, a shortage of trained clinicians. Treating platform regulation as the central intervention risks a familiar trap in British policymaking, where a visible, popular measure substitutes for the unglamorous work of funding a service properly.

There is a version of this moment where the NHS uses the Meta trial well. The evidence being aired in California, of a company that understood the harm and calculated that growth mattered more, strengthens the case for treating online harm as a public health issue with a measurable cost, not a moral panic to be shrugged off. That framing matters for how integrated care boards commission early intervention, for how schools are funded to run in-house counselling, and for whether the Treasury treats CAMHS expansion as a genuine fiscal priority ahead of the autumn Budget rather than a line item to be trimmed when waiting list targets elsewhere take precedence.

There is also a version where none of that happens. The ban passes, the litigation concludes, ministers claim a win on child safety, and the waiting list keeps growing regardless, because nobody addressed the service on the receiving end of the harm. Given the current state of NHS finances and the competing claims on next year's settlement, that is the more likely outcome unless someone forces the connection explicitly.

The lesson from Oakland is not really about social media companies. It is about what happens when an institution knows the scale of a problem and manages the politics of it rather than the substance. British health policymakers should recognise the pattern. A ban on under-16s and a court case in California will not, on their own, see a single additional child through a CAMHS door. Only sustained investment in the service itself will do that, and there is no evidence yet that anyone in government has reckoned with the bill.