STEPHEN GLOVER: I do not question we are experiencing a serious crisis. But do the BBC and its favorite prophet of doom Martin Lewis should be so apocalyptic? YouTube is the most popular social networking amongst teenagers, accompanied by TikTok About 36% admitted they commit an excessive amount time on https://cse.google.com.ai/url?sa=i&url=http://bbcworldnewstoday.com%2F