We do not need our bodies once we leave this world regardless of what you think happens after we die. We should be focused on curing diseases and extending the life of living humans. Science would go so far if we used human bodies after death instead of requiring people to give consent to something they don’t need.
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I’m confused about how this would be a problem in an opt-out system. Assume it’s like cigarettes in NZ, if you’re born after X year you are automatically opted in - but you or your guardian can opt out at any time.
If the spirituality and wholeness of body is significant to a cultural group, by all means they can opt out. But the default should benefit the majority, with provisions for the minority.
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