Expanding on that - I like the idea that some elves might consider holding on to life for too long to be pathetic, or disgusting, and would look down on those who do. Perhaps there is a lot of social pressure to die at a respectable age, perhaps it could be considered rude to live for too long.When is it right to 'give up life?' When is is considered wrong? What effects does it have on the loved ones of those elves that do decide to surrender their life?
It's such a simple alteration, but it adds a lot of depth.