Many people in China celebrated the decision by the Communist Party last month, after more than three decades of the one-child policy, to allow married couples to have two children, calling it a rare human rights victory in a country where freedoms are tightly restricted. But for some of the more than 150 million young people who grew up as only children, the announcement has reawakened feelings of isolation and regret, according to interviews with more than two dozen of them. Read more