This article assumes a lot more self-determinism than is available in practice to most people. Beyond that many of us have been running on fumes for years, I can't lose ten extra hours every week away from seeing my family, so I can up-skill for a new variation on the same career with ultimately the same bull.
If your goal is to get a cushy high paying job you will need to make sacrifices, otherwise that job would no longer be cushy and high paying. Some sacrifice their 20s and grind an education, career, and have no kids or spouse. Others put a large burden on their spouse to retrain, you have to weigh the short term toil versus the amortized improvements over your career. And it is important to remember that luck plays a…
I don't want to manage people. I would be the exact kind of manager that destroys my own will to live. A senior role would be nice, but because I don't have any social skills (all that time I spent learning all of the technical knowledge I have now had unforeseen consequences, specifically, my social skills and emotional restraint are significantly stunted.)
Stop using the argument that people need to make sacrifices. It's not true.