Campaigners and MPs have warned the PM is missing a ‘once in a lifetime’ chance to force platforms to introduce lasting change

The Prime Minister is set on Monday to announce curfews for 16 and 17 year olds on social media as part of long-awaited plans to prevent harm for youngsters online.

Prime Minister Keir Starmer has vowed to call time “on a system” failing children online,as the government prepares to ban under 16s from accessing “high risk” social media…