America lags behind many other countries which do this, and where the earnings of the parents are not such a massive factor in their children's success.
http://www.epi.org/publication/usa-lags-peer-countries-mobil...
Shouldn't we focus more on making life better for the lowest quintile than moving people into a higher quintile? Someone has to be in the lowest quintile, I'm sorry to say. Literally 20% of people.
Why shouldn't we be focused on both? Obviously more mobility means more people moving down as well as more people moving up. That could be a very good thing if it means that the quintiles are compressed.
Huh? Equal education implies more economic movement. Of course education is not the only factor anyway so claiming movement stops completely as a result of some educational change doesn't make sense.