David Cronenberg wrote:

In the case of Gregor, a young traveling salesman spending a night at home in his family’s apartment in Prague, awakening into a strange, human/insect hybrid existence is, to say the obvious, a surprise he did not see coming, and the reaction of his household—mother, father, sister, maid, cook—is to recoil in benumbed horror, as one would expect, and not one member of his family feels compelled to console the creature by, for example, pointing out that a beetle is also a living thing, and turning into one might, for a mediocre human living a humdrum life, be an exhilarating and elevating experience, and so what’s the problem? This imagined consolation could not, in any case, take place within the structure of the story, because Gregor can understand human speech, but cannot be understood when he tries to speak, and so his family never think to approach him as a creature with human intelligence. (It must be noted, though, that in their bourgeois banality, they somehow accept that this creature is, in some unnamable way, their Gregor. It never occurs to them that, for example, a giant beetle has eaten Gregor; they don’t have the imagination, and he very quickly becomes not much more than a housekeeping problem.) His transformation seals him within himself as surely as if he had suffered a total paralysis. These two scenarios, mine [turning 70 -id.] and Gregor’s, seem so different, one might ask why I even bother to compare them. The source of the transformations is the same, I argue: we have both awakened to a forced awareness of what we really are, and that awareness is profound and irreversible; in each case, the delusion soon proves to be a new, mandatory reality, and life does not continue as it did.