Ryan Yang could have taken a job in a New Jersey DNA sequencing laboratory after graduating from college last year. Instead, the 23-year-old lives with his family in Queens, New York, still unemployed and searching. Now, that’s changing as members of the millennial generation, the estimated 85 million born from 1981 through 2000, prove less restless than their forebears. \”They remain stuck in place,\” said William Frey, a senior fellow at the Brookings Institution in Washington who specializes in migration issues.