Yuèláiyuè duō de niánqīngrén xuǎnzé dānshēn shēnghuó.
More and more young people are choosing the single life.
Tips
usage
单身 is neutral and modern. Common collocations: 单身汉 (bachelor), 单身贵族 (happy single person, literally 'single aristocrat'), 单身狗 (single person, humorous/self-deprecating internet slang).
culture
November 11 (11/11, 光棍节 Guānggùn Jié) is China's Singles' Day, now also the world's biggest online shopping event.