My hon. Friend is right. It is hugely significant that those who really know how these apps and algorithms work firmly believe that they are not safe for children. When asked if the iPad was addictive, Steve Jobs famously remarked that he assumed so because he had designed it to be so.

On the causal links between social media and smartphones and the decline in childhood wellbeing, Jonathan Haidt and Jean Twenge present compelling causative evidence of the harms of social media. On his Substack, Haidt describes six experiments that found that when social life moves rapidly online, mental health declines, especially for girls. Not one study failed to find a harmful effect. It is now impossible to deny the devastating impact that smartphones and social media have on our children. Some say that it is a parenting problem and that parents need to pay more attention to their children’s phone use. But in a survey of older teenagers, half said they had found ways to bypass parental controls.

It is not just screen time that is so difficult for parents or children to manage; it is all but impossible to control the content to which children are exposed. As whistleblowers Arturo Béjar and Frances Haugen have testified, social media companies knowingly use algorithms to feed children harmful and addictive content.