Compared with facing life and death, when one has to give up one's loved ones, pets, close friends, and those of all kinds of people in the relationship network, this is really difficult to face.
Announcing euthanasia at the last dinner parting with a close friend is actually to make others accept the parting from himself more peacefully. This is the feeling he has kept saying goodbye to others along the way, because he knows that this feeling is far more comparable. It's hard to die.
So I think this movie is not just about a friendship, but a narration of parting. Life has to face all kinds of parting, learn to let go of this emotion, learn to face this passing away seriously, maybe This is what the film wants to tell.
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