High social mobility isn't a clear net positive
The American Dream is a national ethos of the U.S. Perhaps every third Hollywood movie describes the life story of a person born to poor conditions who makes it. The Americans themselves believe that this social mobility is one of the virtues in which the Americans beat other nations. The only problem is that the data suggest otherwise:
The myth of the American Dream (CNN Money)Someone evaluated the "probability that you will be stuck in the same class as your parents", i.e. the social immobility of a sort. Denmark only has 0.15 so it's a country where the "dream" is true. Canada, Japan, France, Pakistan are between 0.3 and 0.5 but better than the U.S., the U.K. is slightly worse than the U.S., and Peru is much worse at 0.67.
What's wrong here?