If a person wants to leave this world with the help of euthanasia, then what's wrong with that ?! Many simply do not understand how it is difficult for deadly sick people to live each day.
Euthanasia is okay if the person who is ill decided to have it but if only the family decided it, I think it is quite different. There is a big difference between the will and the forced killed. Yes, it may be difficult or painful for us to see them suffered but if they don't want to die by force you should also respect them because it is their life after all. We have no right to take away that little hope from them to live more.