Learning skills while at Grade/High School?

Yeah, it never made sense to me why children and teens never learned skills at school, except maybe for a few random events in Sims 2 for private school students. The grades were only used for a reward/punishment system (military school, not being able to hold a part-time job, earning reward money, etc.) It would make more sense if they learned some basic skills, which would make working towards good grades more meaningful from a gameplay perspective

What we have in Discover University actually makes the most sense, so I think they should extend it to lower school levels too. Grade school students build a foundation (maybe even add a study skill that makes high school more manageable for them as teens) and teens can pick electives to hone certain skills.