Elves were a race with delicate yet fragile minds; elves who left their territory and clansmen for a long time could easily die due to a lonely and empty soul, especially elven slaves kept by humans, most of whom could not live until their masters died of old age but withered away early.
Otherwise, over the past few hundred years, why would slave-hunting squads still try every possible means to capture elves to sell? It was precisely because the previous depletion of elven slaves was too massive, and the cruel nobles frequently drained their physical strength and spirit. Elven slaves who managed to live for a few decades in golden birdcages were already considered to have resilient personalities.
Half-Elves fared a bit better than elves; no matter what hardships they faced, their adaptability was stronger than the elves. They grew up amidst the contempt of humans and the alienation of their clansmen, accustomed from a young age to enduring and finding ways to survive in the mud.
