>>105564650 (OP)Do they need to? Most of what they do is done in apps. We don't make most students lean how to calculate logarithms anymore but once it was standard for maths.
For those students who want to go into a career where directories/folders are an important concept to learn, make it part of the introduction curriculum just as learning how to calculate logs is still part of advanced maths. For everyone else, it's not relevant knowledge for their lives.