Paul Kedrosky of Infectious Greed provides a table of the average retirement age for a number of countries and posits:
I would love to be able to peek into 2020 and see what the following chart looks like then, but I will posit one general guess: Every solvent country will average age 70 or over.Below is a chart showing details of the table in blue, along with the average life expectancy for each country (interesting that there does not seem to be a strong relationship between retirement age and average life expectancy).
I can't say that Paul will be wrong (he very likely is right), but I think there is a "better" (in my opinion) alternative. Rather than work longer, why not "require" less goods / services and enjoy free time more?
In other words, why not become more French?