This is not an adequate advice for somebody who has a family to support.
I'd argue that for the most of us, once we go beyond 18-19 years old we can no longer afford to "think about it first" all the way to retirement age.
So I am really not sure what actionable point you're making here. "Find a better job", maybe? Yeah, a lot of us are trying that. I guess it's filter bubbles thing because I keep being contacted by HR agencies and companies that I want nothing to do with.