I completely agree with what you are saying: self-education is not comparable to real guided education, except maybe in a few extraordinary situations.
However, I think that's not the point of the post, or even what the author is saying. What I understand he means is that you can achieve some decent level of education in any subject by yourself (by some definition of decent), and that for payed education, you should focus on something that has a higher expected return of investment.
I suscribe to that chool of thought, but I was lucky enough to be interested in a lot of field of study when I had to choose what education I'd get. I could have gone for architecture, japanese translation, literature or physics, but honestly, the job market was one of the big reasons I chose to study Computer Science. I still dabble in other fields on my free time, but I chose to focus on something that would give em some stability.
However, I think that's not the point of the post, or even what the author is saying. What I understand he means is that you can achieve some decent level of education in any subject by yourself (by some definition of decent), and that for payed education, you should focus on something that has a higher expected return of investment.
I suscribe to that chool of thought, but I was lucky enough to be interested in a lot of field of study when I had to choose what education I'd get. I could have gone for architecture, japanese translation, literature or physics, but honestly, the job market was one of the big reasons I chose to study Computer Science. I still dabble in other fields on my free time, but I chose to focus on something that would give em some stability.