I think poeple deeply think suicide is wrong. This is repeated to them in church every Sunday. Although this has changed recently, there is still a long way to go. Old people have to die because they have coded wrong morals. People act as they were coded in childhood, they were introduced with the wrong programs. Erroneous genes should be removed, I am this faulty gene, I should have been removed from life before I develop consciousness, so I would not lose anything, and now I have too much need to live and am not even capable of killing myself, I am just suffering ...
Perhaps there is one more explanation, but that's not positive:
Well, humans are monkeys, and the more intelligent the monkey, the more dangerous it is to the environment. In order to kill their remorse, they go to lies, to hurting others. Oddly enough, it makes us happy. We don't feel bad about lying or slowly killing others, but we feel terrible when we kill right away. It's the same with telling the truth, we avoid it, we joke, we ironize, telling the truth is like slapping someone in the face. By removing the suffering of others, they themselves suffer, and by hurting others, they feel good. It's sick, but that's how we are, selfish.