"The young people have really been shafted, big time, with the economy, with the cost of living," Lago said. Such concerns partly explain why most parents help support their grown children in some way, many well beyond the traditional age of financial independence. The share of 25- to 34-year-olds living with parents has also nearly doubled since 2005, to about 20%, according to the Urban Institute. This changing economic landscape has helped fuel the rise in adult children living with parents. A year ago, one daughter moved back home, with her husband and now two young kids, so she could be a stay-at-home mom.