Hmmmm....an interesting topic. Here's some points from my own family: I was able to retire at 41, in large measure, because both parents died and (duh) left me money. Both my parents were frugal, to the point where a trust officer once commented (accurately, I think) that the "denied themselves many pleasures." I don't plan to repeat that mistake. I have little fear of spending my money too soon, as it's entirely locked up in trusts and gets parceled out to me. But that bitching is another (old) thread. Another point: I have living relatives (aunts, uncles) who are now well into their 80s. They are in (relatively) good health, but one of their children remarked to me (I was discussing likely inheritances): "There probably won't be very much left."
the point is to find your balance. On the one hand, it's stupid to scrimp and save, live a long life, and die rich. Even the Bible has words to that effect, about "A man who has no sun, yet works hard. Who will inherit his wealth?" At the other extreme, you shouldn't piss it all away today (unless, perhaps, you have a short life expectancy.) Why not a middle ground? I'd take that backpack trip at 25 (or 35, or 45) rather than wait until retirement. If I can still visit Japan, India, or Peru in my 70s and 80s like dear Auntie did, well and dandy, but tomorrow is given to no man, much less 30 or 40 years from now. Grab life by the ballls and twist! Just my $0.02
Another reason is to spend while the spending's good: future illness, taxes, or just plain problems could make your wealth vanish. Let's see, how about expensive Medicaid care in your last months, followed by taxes or recapture of your remaining assets? Or: high taxes in the unpredictable future? This country will have to raise revenues somehow, and taxing your retirement savings might be just the ticket. On the other hand, I defy Uncle Sam to tax the month I spent in Mexico this past summer, or my Summer 1995 bike ride around northern Europe. Point well made?