Discourse around death in general makes people queasy. We tend to avoid the cognitive dissonance between the idea that supplying less end of life care would dramatically reduce medical expenses and the idea that all people deserve the best chance at life[1]. We are similar avoidance when MAID is discussed specifically because we know incentives and values clash.
1. this could probably be phrased better. sanctity of human life and dignity if human life don't quite fit because those are meager at EoL and value of human life sounds a but off.