Thought this might be interesting and germane, something to define and plan or set goals for: the American dream. There are two views posted below, to satisfy the politically minded, and many other articles available from each of these two sources.
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The BLS tables of consumer expenditures include income data. The upper three quintiles mostly have more income than expenses (average). Not to be too cynical, but it might seem that to some these days, just being solvent is an achievement. Several (most) articles define the original "American dream," but note the variability of definitions from individual to individual.