jonathan coppage wrote on that subject for the "washington post." he's a senior visiting fellow hatd the free market think tank, r. street institute. you say we're repeating a pattern that used to be the case. >> that's absolutely right. what's important to recognize is that people living with their families is not at all a new trend. but rather the way that things used to be. we've taken to understanding ourselves through the lens of a very weird place in american history. which was the 1950s. but when you look at the greater suite of our country's history, people lived with their parents as a norm. and parents then lived with their kids. what was important is that they contributed. and it's not a matter of fact that living at home means that you're dependant. can you still absolutely be productive. but can you take advantage of the familial support. >> what accounts for this? >> so it's a really interesting trend. some of this is delayed