[WalterGR]

That's... not the point of the article.

If you read further, for example,

In these viral budgets and diaries, urban professionals—they are almost always urban professionals—describe spending on $7 lattes and $70 bikini waxes and $70,000 private-school tuition. Some describe themselves as middle-class. Many describe themselves as unable to save. Self-evidently, this is nonsense: Spending tens of thousands of dollars a year on vacations and babysitters and housekeepers and fancy salads means you are choosing not to save, not that you are unable to save.