Thank you for bringing it up. Should we have the right to choose between painful life or pleasant death? The euthanasia being a euphemism for suicide is more and more common word in the Western world. And it should be. We cannot pretend that it is happening to someone else and by that premise, we are not accountable to think about it, write about it, discuss it with others.
I don’t think we should either be allowed or not allowed to end our lives on our terms. No one actually has the right and power to prevent us or punish us.
The key term is “allowed”. What if I do it. How will I be punished? Can someone forbid it. We answer to no one in the sense of legal/illegal. Because there is no punishment.
That being said, the question is why the majority of people decide to live and suffer? My answer is conscience. The voice inside our head that says no. We do have someone to answer to. And the punishment is guilt. My worldview is that there is God. And that our conscience is the way He communicates with us. And if there is a god, then it also implies that there is an eternal life, since God is an eternal Being. This view really boils down to the sphere of beliefs. We can either believe there is a god, and that our guilt will haunt us for eternity, or there is no god and our suffer would end.
This way of putting it is just a derivative of Pascal’s wager. I kill myself and go to hell, or suffer and take my chances to go to heaven. People wager on to take their chances.
For the nonbelievers, there is a guilt and shame left for the family to carry over generations.
My view is described best by the saying of J. R. R. Tolkien, “Many that live deserve death. And some that die deserve life. Can you give it to them? Then do not be too eager to deal out death in judgement. For even the very wise cannot see all ends.”
I wish you all the best,