This question came to mind with the following N4 example sentence of:
大学生は高校生より宿題が少ない。
Is that a common way to express such a comparison? It would seem to me that it’s much simpler, with no mental flip flops involved, to say:
高校生は大学生より宿題が多い instead.
The first sentence reads to me like, "compared to college students, high school students have less fewer amounts of homework, while the second one comes across as "compared to high school students, college students have less homework.
I dunno, maybe it’s just the way my brain parses the sentence, but it just seems like an odd way to say it.