The US survived WWII with considerably less damage and fewer deaths than other technologically-similar countries, with some of the best technology, worldwide in

The US survived WWII with considerably less damage and fewer deaths than other technologically-similar countries, with some of the best technology, worldwide influence, and a government system that encouraged productivity. This led to 2 generations of extremely high levels of prosperity relative to the rest of the world. As a result, we've had a period of time where working-class families were able and expected to function with one generation of adults and one generation of children in the home. I already see signs of this "peculiar little historical blip" ending. I know a lot of adults who are married and/or have children who live with their parents or other relatives. I know a lot of grandparents who babysit their grandchildren multiple days per week. It seems to be fairly common among low income families, and I think it's becoming considerably more common among middle-class families.