[watwut]

If I waited with learning English till I needed it, it would be too late. I was forced to learn it and benefited from it. If I waited with learning how to write coherent text till I needed it, it would be too late. I was forced to learn it and benefited from it.

I did actually used linear algebra and mathematical analysis on couple of projects and if I did not had math background before, I would not be able to understand what I needed.

I discovered programming at high school. If the teachers did not showed it to me back then, I would not even think about programming as a possible career.

The value of high school and college was in having me to learn things I would not learned otherwise. The things I would learn by myself, I learned by myself.

[usrusr]

So true! On the job, almost all of your new knowledge is specialisation on an absurd level of being specific to your job and only to your job. Framework X isn't your specialisation, framework X is the most general knowledge you acquire while on the job. The specialisation is knowing the implementation Y built on top of X and remembering the misconceptions and politics that led to business decision Z which caused module Y to be implemented like it is.

All the education that came before that was to complement that on the job specialization. You start out very general (walking, talking, basic social behavior) and then dive into an increasingly narrow funnel of stuff that is somehow related to your future X,Y and Z that you will learn on the job, but is not not identical with them. Education is for learning the things practice won't teach you (an extreme example: knowing a bit about Plato or Cesar would likely be more relevant to making sense of Z than understanding the halting problem or being good at regex).