d said:If Bernicke's conclusion is correct, would this not then suggest that Americans are on the whole saving too much money for their retirements? Don't think you'd find many thinking this true.
No, I don't think it is suggesting that Americains on the whole are saving too much. I think it suggests that generally financial planners are over stating the amount of savings required for retirement.
With that general statement given I frankly don't see my spending going down as I grow older either, but I think that stems from my attitude toward spending. I think that someone that has an attitude of LBYM is likely to be getting good value for his/her money spent and probably is not paying for services that s/he can do him/her self and not spending on stuff that is unnecessary. As one gets older some of these things aren't doable any more and the service will have to be purchased and some stuff may become necessary. However, I can see how travel, entertainment, and even food expenses could go down.
I also think "Americans on the whole" don't always get good value for money spent, spend money on services they could do themselves and buy unnecessary stuff. From there it is easy for me to believe that their spending goes down as buying stuff becomes less important to them.