STEM are also, I think, the wrong field(s) in which to rely on critical thinking to, _broadly speaking_, be taught. The technical background - programming languages or maths or basic biology / chemistry - that have to be assimilated before reaching that point are too high a hurdle for most students. Humanities, with a natural-language corpus + common experience, are a more-accessible approach. (The trivium, if you're familiar with classical-education terminology.)
That's not to say STEM courses can't teach critical thinking - they can, and must - nor that educators in Humanities haven't done a piss-poor job of it over the last half-century or so. That is to say that the general decline in critical thinking skills is mostly attributed to the decline in the status of and standards within the Humanities disciplines.
(1) Not entirely a function of bachelor's programs that produce conformant wage workers.
(2) Not worth the high tuition and debt at all.
I can't help but imagine that there have got to exist far better and cheaper ways to learn how to think. I would like to see more entrepreneurship colleges that force people to innovate, also to bootstrap without external investment.
One of the things I was lucky to have as a part of my college experience was access to a group of professors who, while they certainly were not on the cutting edge of their fields in terms of research, cared a lot about good teaching. I wasn't an lit major, or a linguistics major, or a French major, but I was able to take courses in contemporary literature, history of the English language, and modern French literature with people who were, taught by experts in those fields who were there for the sole purpose of doing so.
Then there was the course I took that was ostensibly a political science course, titled simply "General seminar." General seminar was a 1 credit course taught by one of our two political science professors. The only required prerequisite was an invitation. He taught the course generally once a year, and he'd invite 5-6 students, generally juniors and seniors, to literally come over to his house once a week, eat dinner, and discuss a book that was the chosen topic for the semester. There was a rotation for who was supposed to be the facilitator for the evening, but that tended to be an easy job. With ~5 hand-picked, upper division college studnets from multiple majors, discussion generally chose its own direction after the initial introduction and maybe a couple general questions to the group to bootstrap things.
Because I came in to college with 8 college credits already from having taken the calculus sequence at one of the local colleges, rather than screw around with AP, I was nearly a semester ahead of everyone else in my cohort when classes started freshman year. These were not introductory courses, so, often, I'd be the only non-major in the room. Even so, I was held to every bit the same standard as they were.
With only 5 professors in the entire math department, the catalog offerings were mostly limited to the basics: calculus I-III, linear algebra, abstract algebra I-II, differential equations, geometry, probability, mathematical statistics I, real analysis, and a course in foundations that was a capstone course. I took literally all of those, due to having started with those 8 extra credits.
I won't say it was a plus or a minus, but one property of going to a school with only 1200 students is that people will get to know each other. I swear, when I was in college, more people knew my name than whose names I knew. But, that also led to me being able to take independent study courses in elementary field theory, introductory Galois theory, and axiomatic set theory.
Oh, and the foundations course? Yeah, that was a weird combo of like, a month of elementary number theory, followed by a course in point set topology. The topology portion was taught via the Moore method. To this day, I still remember standing up in front of the class (all 5 of us ), and giving what was, and probably still is, to this day, the world's worst correct proof that the real line is connected. The classroom was a small auditorium, equipped with blackboards that rolled up to reveal a second set of blackboards behind them. That gave me 4 blackboards to fill up, and fill them up, I did! But, by golly, when I put my piece of chalk down, Theorem 23 was proved, and C (for "continuum") was well and truly known to be connected!
The point is, although I said in another comment that I now believe I made a suboptimal choice by going to the school I did, given that I was at a SLAC and not a large, research university, I also believe I took full advantage of the resources and strengths of the school I did go to. You might say I learned something about how to think and formulate ideas during my undergrad, but I'd be willing to bet many of those in my graduating class just did it for the piece of paper. You know, the key that unlocks the gateway to the middle class.
But, who am I to question them? :)
