Hey! Wait! "The existential urge to mate" is kind of a big deal! Should we be hand waving away that entire bedrock motivation of human nature?
Social institutions designed for turning children into adults i.e. family units, day cares, public schools, youth sports, universities, studio apartments in big cities (a kind of halfway house between childhood and adulthood) have been continually stretching out adolescence, and this article takes that long adolescence for granted. But it's fraught with all kinds of outcomes that will sabotage the very financial independence the article is advocating for.
That pesky urge to mate starts to hit hard around 11-13 years of age. So we're resigning young adults to unfulfilling, casual sexual relationships until they get established and they can truly explore their sexuality, including making new humans of their own, in their mid-thirties. That's 20+ years of avoiding unwanted pregnancy, venereal disease, various kinds of sexual violence (from harassment to assault), and a host of psychological issues that can crop up in that casual environment.
And, oh, BTW! Bad outcomes in sexual relationships are the ones most likely to inhibit financial success [0].
So all of those "loner" self help articles about getting rich young and retiring early simply do not apply to the vast majority of the population.
What we should be helping young adults to do is become competent early (as the author suggests), but also to find a competent mate early as well. Then you can increase your household income, continue living in that studio apartment, and sidestep the most dangerous obstacles to financial independence before they ever have a chance to strike.
[0]https://www.brookings.edu/opinions/three-simple-rules-poor-t...