They aren't wasted but they're not necessary either, and I think that was the point. Let's say I wanted to become a general contractor, but for some reason that's a graduate program. I spend 4 years taking civil engineering. Did I waste my time learning about concrete... no, probably not, but it is necessary to do my job? Also no.
It's also hard to equate your "stronger early focus on STEM" with a pre-med program. If all it takes is teaching biology and math a little earlier, is that 4 years really the best use of time?
Edit: the pre med prereqs are a good start. But I value the skills & concepts from the senior level bio/chem classes that I wouldn’t have gotten with a 6 yr track. Something also to be said for the emotional maturity that comes with 4 yrs prior to med school.
The salient question is cost/benefit. What is the cost in terms of lives and resources of those extra years? Do sufficient benefits obtain?
The US is globally known as a great place to get treated for cancers, especially. 5 year survival rates are relatively high - but of course only a fraction of Americans actually have access to the kind of diagnostics and treatments that deliver these outcomes, and only a smaller fraction of those with said access actually pass on significant assets to their heirs. For most, the medical- and death-industrial complex fulfills its primary extractive purpose.
I find it deeply ironic that your literally academic perspective ("Something also to be said for the emotional maturity that comes with 4 yrs prior to med school") is so utterly subjective - i.e. about your feelings, NOT data around outcomes. In the OECD, people live longer, on average, in places where less time and money is spent educating physicians. Yes, there are confounding factors - but this is true even controlling for the big ones like obesity
Not looking for proof of what you say (you say “impossible to prove” after all, and that’s fair) but surely something makes you believe this.
These are good students, so they enter college with AP Chemistry and AP Biology credit. Start off college with Organic Chemistry 1, then Organic Chemistry 2, then Biochemistry. That's just 1 year to take the classes actually needed to enter medical school in the USA.
Some students might even take those classes via dual enrollment (a.k.a. dual credit, early college, etc.) while still in high school.
That is 0 to 1 years needed after high school. The medical schools demand a 3-year degree (actual time) at minimum, which in the USA means a 4-year degree. Subtract as you please, and you'll get an unjustified excess of 2 to 4 years.
My honors chem class was in 10th grade. It barely touched on electronegativity, nor acid/base chemistry in a through way.
To expect a student to pull that experience forward two years later and integrate it with calculus to pull off organic chemistry seems non-ideal for many students.
And you really need the through physics/calculus component unless you want to wave biochem students past thermodynamics, which seems crazy to this former biochem student.
Cut the one quarter quantum mechanics class, perhaps.
There is a competing college credit test system, International Baccalaureate, that actually includes lab work as part of the test.
Physics and calculus are available too. The right ones would be AP Calculus BC, AP Physics C Mechanics, and AP Physics C E+M.
While it's not required, the majority of students DO follow a pre-med program that allows them to take Biology, Organic chem, Chemistry, Physics, Psychology, etc...
These aren't wasted years, for the majority of medical students.
I think the solution is more about having more medical schools and reinforcing STEM for younger students so that the supply can keep up with demand.
One of the reasons so many foreign students go into medicine is because they come from countries with very strong culture of STEM education at a young age - something that's not done in the majority of US school districts.