If we're just looking at how to improve the individual: The issue is lack of self discipline. as he said, it's just too easy to spend. The solution: more social security, in effect a forced retirement plan. Instead of 7.5%, make it 10% or even 15%, 20%, whatever it takes. that takes self discipline out of the equation and fixes the imbalance between spending and saving.
If we're looking at society, then there's a lot of ways to bring the cost of living down. the cost structure of an individuals spending is mostly on housing. Unfortunately, right now your only choices in the developed world are: an extremely fancy luxurious living arrangement (most condos, apartments, houses, etc) far beyond your means or an illegal tent under the highway. But, looka tthe hazda tribes: they show you don't need millions of dollars for shelter. they don't even have modern tools. they build their own shelter by hand every night with a few hours of work, with NO money or retirement savings whatsoever - what can we learn from this? sure we may not build the exact same structure but there's a lot to learn from this conceptually. There's a world of innovation waiting to happen between those luxury condos and a handwoven 3 hours makeshift tent - unfortunately right now, it's all very much Illegal.