Of all generational cohorts, older millennials are most likely to generate enough income to retire comfortably, according to the latest Vanguard Retirement Readiness report.
Specifically, millennials aged 37-41 have the greatest chance of landing a comfortable retirement.
People tend to spend what they earn. I have to be careful not to spend more than my paycheck every month. I know people who make less than half what I do who still do okay in life - they don't have as nice a house or as many toys, but they have food on the table and a warm roof. I know from experience that I could cut how much I spend every month by a lot - I just don't want to cut those extras from my life.
Many people are working long hours now saving for retirement when they plan to travel, and thus they think their spending will be more in the future. I know some who did that for years, and got cancer and died before their planned retirement age. I know others who have been traveling the world carefree for a couple decades after retiring.