His family is initially shell-shocked but later accepts it as a part of life. However, Gregor's room is slowly turned into a go-down of unwanted items. He ceases to be given any importance and is slowly considered an outsider within home! He cannot possibly come out of the room and sit down to spend time with his family. He is shut up in a tiny room that is a mess. One day, as the family leaves his door slightly open, so that he could listen to his sister, Grete's singing that entertains lodgers in the house, Gregor comes out of the room and sends a shock wave in the room!
This is when the family decides that Gregor is nothing but a burden on their shoulders. Gregor passes away that night. The metamorphosis here is not solely physical. It is symbolic and signifies the transformation of the world.
The giant bug here, is symbolic of the mere pettiness of this mammoth world, where life has been transformed and rendered nothing but a social circus of activities! The metamorphosis is a depiction of the human condition in to