Not every career path allows for doing that. If you're not working a white collar job already, odds are you're not going to have the time to go out to the new area to interview, let alone be able to afford to get yourself out there.

I would guess most people aren't working 24 hours a day, 7 days a week. There are plenty of online resources for finding jobs. My father worked in a steel mill for 20+ years, managed to go back to school as a much older adult, and get a job in an entirely new field(medical tech).

No, but if you're working two jobs, your time for doing that is extremely limited. Double so if you have a family. Your dad probably was not working more than 8 hours a day. A lot of people that the article is talking about are those that have to work much more than that.

My father worked double shifts most of my childhood, on rotation shifts no less. Dude worked his ass off, and still had time to build our house, advance his career, and was always around for baseball practice. No excuses.