All Adam Sandler comedies tend to be obvious and primitive and aimed at lowbrows, so I don’t see what’s so exceptionally heinous about Jack and Jill. At least it’s addressing a basic fact about sibling relations, which is that some brothers and sisters are an unfortunate fact of life (and in some cases an embarassment) whom you’d prefer to not to keep in touch with, thanks all the same.
I loved my younger sister and younger brother after a fashion, but I didn’t really seek out their company or friendship because they were both fairly undeveloped people, and I would run out of conversational fodder with them fairly quickly.
