Duan Shuangzhu, 68, a waste collector who moved to Beijing in late 1990s from a small village in central China's Shanxi, stands near a rubbish cart while working in Beijing on March 1, 2024. China?s first generation of migrant workers played an integral role in the country's transformation from an impoverished nation to an economic powerhouse. Now, they're finding it hard to find work, both because they're older and the economy is slowing. (AP Photo)