Back to the point of the OP. I don't see why script should ever be a required course. Like any other art, it should be elective, and pursued by those interested. I can see an introduction to script and calligraphy in an elementary level generic art program that also gives introductions to watercolor, oil, acrylic, sculpting, carving, pottery, etc, but a required course all its own... Silly.
Now, being able to read and understand cursive is important. You should be able to read a wedding or funeral invitation at the very least.