I mean...
On sale, I guess it's worth it, the pack does not have any larger bugs as far as I know. If you like to make outfits with trendi, use the gen z inspired clothing and also want more rabbit holes for your teens (jobs and after school activities) and maybe you would like to build some rooms for your teen sims and maybe build high schools then it's worth it.
But the actual high school gameplay is very simplified and repetitive and it doesn't help that prom is happening every week. The social bunny app is just posting the same messages over and over as well.