All metaphors are learned. Given that technology tend to replace things from the manual physical world these metaphors makes a lot of sense as they help humans transition.
Over time new concepts emerge which are based on metaphors native to the digital space and understood by the new generations.
Digression risk: Unless we count human evolution as “learning” I’d disagree: some “metaphors” are surely innate. A snake is scary to babies who have not learned it’s dangerous. Symmetry is beautiful to an untrained eye. Design should be informed also by our innate traits; refrain from taking the “blank slate” idea at face value.
Over time new concepts emerge which are based on metaphors native to the digital space and understood by the new generations.