Parenting to 30

For parents of 20-somethings, what's the line between being supportive and being indulgent? How can parents help their kids through "emerging adulthood", from age 18 to 29? What's different for this generation than for others? Elizabeth Fishel and Jeffrey Jensen Arnett, co-authors of Getting to 30: A Parent's Guide to the 20-Something Years, talk about the challenges and offer advice to callers in their 20's and their parents.