An employee directs job seekers to queue up outside the Foxconn recruitment center in Shenzhen, Guangdong province in this February 22, 2012 file photo. The changing attitudes of millions of young Chinese workers from the countryside pose a deep challenge for thousands of manufacturers, such as Foxconn and its big customer Apple, which have relied on what they once thought was a virtually endless stream of inexpensive, compliant workers. Younger, better educated and more tech-savvy, many migrant workers grew up as the sole children in their families and are less accepting than their parents were of tough working conditions. Picture taken February 22, 2012. To match Insight CHINA-WORKER/ REUTERS/Joe Tan/Files (CHINA - Tags: BUSINESS EMPLOYMENT SCIENCE TECHNOLOGY)