The next day the government launched its own public consultation, explicitly modeled on Australia’s December 2024 ban. The consultation explored a hard age limit, restrictions on infinite scrolling, and tighter algorithmic controls . By its close in late May, it had drawn 47,000 responses .

Behind the scenes, Technology Secretary Liz Kendall and Prime Minister Keir Starmer made clear that a meaningful policy shift was coming. Starmer told reporters in late May, “I am unequivocally clear that we need a game changer in this area, and we will take action” . On 8 June, The Times reported that Starmer was poised to announce a ban on “harmful” social-media platforms for under-16s, while preserving access to messaging services and other less risky online spaces .

The Trump administration’s countermove

Washington did not wait for the formal announcement. On 5 June 2026, the US embassy in London submitted an official response to the UK consultation, laying out clear objections to any blanket under-16 ban .

The submission—an unusual step into another country’s domestic rule-making—argued that:

• A ban would impose a “disproportionate” and “unequal” burden on American technology companies .
• Age-gating for 13- to 16-year-olds is technically impractical and “would not work” .
• Responsibility should rest with parents, not government, and the UK should instead promote “robust tools” for parental control .
• The policy represents “prescribed one-size-fits-all government restrictions” .

Free speech is a central thread in the US position. Vice President JD Vance previously claimed free speech in the UK is “in retreat,” while a senior Republican congressman branded the Online Safety Act “the UK’s online censorship law” . The submission itself stops short of explicitly invoking the First Amendment—it addresses a foreign country, after all—but the framing is unmistakable.

A diplomatic fault line

The submission arrived just days before Starmer’s expected announcement, turning a child-safety measure into a live diplomatic test .

Internal UK cabinet divisions show just how seriously the government weighed the relationship with Washington. According to reports, several Starmer cabinet ministers initially resisted the ban, fearing it would “irritate” President Trump and damage ties with an administration that is warmly disposed toward big tech .

Nonetheless, the UK government is now pressing ahead. Secretary Kendall responded bluntly on 9 June, saying her focus is on British parents’ views and that the government “will not be swayed” by US pressure .

Cross-party consensus at home

The policy is unusual in commanding support across the political spectrum. Opposition leader Kemi Badenoch announced in January that her party would set age limits for social media, and the Conservatives have framed the measure as protecting children from extreme content, commercial exploitation, and addictive design features .

The combination of parliamentary backing, a detailed public consultation, and a clear Australian precedent has given the government confidence to move even in the face of US objections. The immediate question is not whether a restriction will happen, but what form it takes—and whether the White House escalates its response once an announcement is official.

The next day the government launched its own public consultation, explicitly modeled on Australia’s December 2024 ban. The consultation explored a hard age limit, restrictions on infinite scrolling, and tighter algorithmic controls . By its close in late May, it had drawn 47,000 responses .

Behind the scenes, Technology Secretary Liz Kendall and Prime Minister Keir Starmer made clear that a meaningful policy shift was coming. Starmer told reporters in late May, “I am unequivocally clear that we need a game changer in this area, and we will take action” . On 8 June, The Times reported that Starmer was poised to announce a ban on “harmful” social-media platforms for under-16s, while preserving access to messaging services and other less risky online spaces .

The Trump administration’s countermove

Washington did not wait for the formal announcement. On 5 June 2026, the US embassy in London submitted an official response to the UK consultation, laying out clear objections to any blanket under-16 ban .

The submission—an unusual step into another country’s domestic rule-making—argued that:

• A ban would impose a “disproportionate” and “unequal” burden on American technology companies .
• Age-gating for 13- to 16-year-olds is technically impractical and “would not work” .
• Responsibility should rest with parents, not government, and the UK should instead promote “robust tools” for parental control .
• The policy represents “prescribed one-size-fits-all government restrictions” .

Free speech is a central thread in the US position. Vice President JD Vance previously claimed free speech in the UK is “in retreat,” while a senior Republican congressman branded the Online Safety Act “the UK’s online censorship law” . The submission itself stops short of explicitly invoking the First Amendment—it addresses a foreign country, after all—but the framing is unmistakable.

A diplomatic fault line

The submission arrived just days before Starmer’s expected announcement, turning a child-safety measure into a live diplomatic test .

Internal UK cabinet divisions show just how seriously the government weighed the relationship with Washington. According to reports, several Starmer cabinet ministers initially resisted the ban, fearing it would “irritate” President Trump and damage ties with an administration that is warmly disposed toward big tech .

Nonetheless, the UK government is now pressing ahead. Secretary Kendall responded bluntly on 9 June, saying her focus is on British parents’ views and that the government “will not be swayed” by US pressure .

Cross-party consensus at home

The policy is unusual in commanding support across the political spectrum. Opposition leader Kemi Badenoch announced in January that her party would set age limits for social media, and the Conservatives have framed the measure as protecting children from extreme content, commercial exploitation, and addictive design features .

The combination of parliamentary backing, a detailed public consultation, and a clear Australian precedent has given the government confidence to move even in the face of US objections. The immediate question is not whether a restriction will happen, but what form it takes—and whether the White House escalates its response once an announcement is official.