I just want to comment on this first point made in the article:
This is the most stupid point to make if you are trying to give someone a lesson on how to not "end up poor".
This author is saying that you should just go to school and skate through .. "Just be furniture".
Never in my life have I ever been asked to show my HS Diploma in the job market. Not when I was 18 years old, or anytime in the 20 years since. Sure, it says on a job application "Do you have a HS Diploma or a GED?" and everyone just marks "yes" and that's the end of the story.
But if you are trying to stress to someone that education is important in order to get a job, telling them to just coast through high school and just get a diploma isn't good advice.
The author of the article should have said either:
1. Concentrate on your high school studies and do well, so that you can get into college.
or
2. Learn a trade while in high school or shortly thereafter.
Because in reality, just getting a high school diploma doesn't make you any closer to getting a job (avoiding being poor) than if you just dropped out of high school in 10th grade.