I've heard from smarter people than me that your parents' level of economic attainment is the best predictor of your economic attainment. Everyone may be broke in their twenties, but some of those 20 somethings presumably got a leg up from being in a good (pre, elementary, secondary, post-secondary) school and can ask mom and pop for help on the down payment for a home, etc.

Suspect that's still the case, though the other trend of increasing inequality means that more and more at the bottom are slipping out of middle class, while a very select few at the top are headed toward cryoretirement in their ice palaces overlooking a scenic valley on some private jovian moon.