roadrunner
WKR
Again, not arguing that it’s not convoluted, but the original idea behind college, in the Socratic sense, was to produce philosophers: thinkers.
Doctors and lawyers both have to know and interpret complex language, terminology and lexicon. To address your specific example, The idea behind studying languages is to be able to fully understand, comprehend, interpret and discuss these complex thought processes, problems and interpretations. In the year 2021, I’m not saying that one can’t do this entirely independently, particularly if one is interested in virtually any subject as their are podcasts that are as in depth on any given subject as there are college lectures, BUT, that was the original idea: you are challenged with varying complexities across a variety of subjects in a way to stimulate the brain to better understand learning processes, critical thinking in general application and be able to apply that to a very specific field in an efficient manner.
The original delineation between trade school and college was just as you described: in tradeschool you focus on developing a specific skill set. In college, you focus on developing a broader thought application that is later refined in practice: Med school, Law school, engineering school etc or through a direct degree such as economics, business, biology, mathematics, thought etc and your brain is adapted to this broad spectrum of critical thought.
While, again, this has all become very confused and convoluted, you have to remember that for the vast majority of history, a tradesman wasn’t expect to be be literate and that obviously doesn’t apply to modern society. In many modern trades, a foundation of critical thought is just as important for the execution of that trade as it is for many white collar jobs. So the discussion shifts to how much education does one need? And there’s no easy answer to that as trades are only getting more complex.
All professions are a trade. The road to get there varies. It takes critical thought processes in skills trades as much as it does in cognitive trades. When I say an MD doesn't need to worry about interpreting poetry, it means they waste time taking unnecessary electives as a pre-professional program undergrad. In the case of lawyers, it clouds their thinking and they read way too much into scenarios, and then you get misconstrued interpretation of law. They are a helpless bunch.
Doing more research in a degree field is how you sharpen critical thinking skills, not trying to understand what Robert Frost meant in a poem or even Hemingway in a drunken stupor.
In the case of specialized trades, I trust an NDE Level 3 Technician way more than I do a licensed engineer with 7 years under his belt. They know more, they've seen more, they know what causes what. They usually know the code forwards and backwards and interpret the results for the engineer.