A couple of things to consider?
First, the insurance industry has shown the linkage between earlier retirement and living longer.
Basically, the earlier one retires, the longer you live.
The longer you leave reirement, the earlier you die!
From memory, the figures were those who retired at 55, lived on average to around 85, whereas those who worked until 65 or longer, were lucky to make it to 70.
Second, there will be many who will find they are unable to retire, early or at all, particularly following the return of the GFC and substantial declines in wealth, due to plummeting share & housing prices.
Whilst we (in OZ) have so far avoided the worst of the GFC, that situation will change during the next 12 months, starting probably around this October.
That said, many in other parts of the world, in particular the USA & Europe, are already find things tough and the resumption of falling share prices & housing prices, will literally rule out retirement altogether, for many in the USA & Europe.
We, in Australia, are about to find out what many overseas have already experienced and whether it is Labor or Liberal that win this weekend, they will not be able to change the basic direction of Global ( & OZ) Economics, but they may be able to make a difference, at the margins.
This time IS DIFFERENT!
I guarantee we will see changes, but we may not like them?