I think people should be able to choose when they want to die. Especially if they are terminally ill. My grandparents were telling me the other day that in Holland, assisted suicide is allowed but two doctors and one "layperson" get to decide on an individual case. The doctors pretty much always agree as long as the person is terminal/suffering, while the layperson almost always disagrees. You only need 2/3 yes votes to go ahead though. There is now controversy because the laypeople feel their vote is never counted as the doctors generally side together. Either way, I don't see why it's anybody else's business when someone wants to die. No one else can know what kind of suffering they're going through, and it's their own life. Why should anyone else get to control that? I know I would much rather die than live in an aged care home, for example. Especially if I had dementia or something. If you don't even know who you are or what's going on, then what's the point?

For people who are incapacitated, I think you need to assume they don't wish to die. I don't think it's right for family or next of kin or anyone else to decide that. People would need to have prewritten agreements like "if I am in a coma for x years I wish to die" or "if I am braindead I wish to die" etc. Like "Do Not Resuscitate" orders. Unless they have one, you have to assume they want to live and you need to keep them alive. It also prevents any issues arising from some family wanting it done and others not wanting it done or family wanting them to die so they get their inheritance or whatever.

As for the death penalty for crimes... Practically, it makes much more sense than wasting money keeping those people alive for so many years. But I don't think it's really right to kill other people. When it comes down to it, it's murder as well. If a criminal kills someone's wife, and then that someone goes and kills the criminal, they're still going to be charged with murder. So how come the justice system/government/whatever is allowed to kill someone and it isn't murder? It doesn't really make sense. I also feel like spending a life sentence in jail is worse than death. I know if someone performed a crime against me, I would want them to suffer for a long time. :P