I am not an economist and
The retirement age was set at 60 in a time when people were expected to live to 70. Now, someone living to 100 is less miraculous an event and will become more and more commonplace over the coming years with improvements in healthcare and if people still want to retire at 60 they'd need to pay as much in tax as they receive in their pay packet to fund it! I'm sure they'd complain about rises in income tax, or VAT.
This is not my most thought out blog post but I am severely pissed off with a whole bunch of French people today (and on all the other days where such retirement strikes occur). For me striking over the retirement age is as stupid as complaining your car's new square wheels don't roll very well.