All these over-complicated "solutions" are incredibly funny. At my uni in Germany education worked in a very straight forward way. There is no graded homework (you're in a university not an elementary school), at the end of the semester there's a three hour exam, on pen and paper (our CS profs deducted a point per syntax error btw so mind your parentheses) and if you don't do any homework or don't show up that's on you because you're an adult, but good luck making it through the test.

Of course 70% or so usually crashed out in particular in Calculus and I suspect given that US education is paid for daycare that's exactly the thing that can't happen which is why they're never fixing it