.in some countries they forbid parents/specifoc people from donating to a specfic person. For example, in Canada, a woman got tons of unvaxxed volunteers for her kid. The state denied them and said that if she didnt authorize the injection from National blood bank services then they would take her kid away and do it anyway. The kid later died from vaxxed blood.
Many such cases.
Conservatism: selfish to the grave
Let's be like the Chinese then, and harvest organs from prisoners, so nothing will go to waste. In the true style of liberalism, let's give people 10 years off prison time, or create a "free market" where you can donate a kidney for money. That won't create any perverse incentives.
Now what sense does that make
smiles