I find the obsession with homework in highschool to be totally ridiculous. It's beyond teaching or memorization, its moved to ceremonial busy work to make educators look good. Because obviously the volume of work kids are doing indicates how good the teacher is, right? It's a case of KPIs gone wrong for sure. When I went to university, my marks improved over HS because the daily BS was forgotten.
I have opposite feelings about it. I was always doing homeworks, but when I stopped doing math homeworks my grades dropped.
On the other side, when I stopped doing latin homeworks, my grades increased.
Then there was art homeworks which were entirely a joke, first time I did them regularly (replicate parthenon front with pencil and then ink it), my rating was 4 over 10 (notice that I was on a STEM course), which is extremely bad. And took me something like 8 hours to draw.
Next time I decided to do like everybody else and I used glass, a lamp and drawn with the picture under the paper.
Rating was 7 this time and it took me 2 hours of work (inking still takes time).
One student photocopied and enlarged the damn drawing and got 8 over 10 as a grade. Like, how are you supposed to get to 10?