European countries wrestling with how to limit young people's access to smartphones, social media

UK ministers are considering banning the sale of smartphones to children under the age of 16. And in France, a hard-hitting study says children should not be allowed to use smartphones until they are 13 and they should be banned from accessing conventional social media such as TikTok, Instagram and Snapchat until they are 18. But The World's Europe correspondent, Orla Barry asks, are these bans effective?