Quoting Fat-and-Happy:" Hypothetical situations. Scenario #1 You are informed that the child you are carrying will probably ... [snip!] ... and wants to end their life at the onset of the disease. What do you do? How do you feel about the right to die in general?"
Scenario one - I would chose to revive the child. If they are not going to be in pain, I don't mind one bit taking care of them for life - even in a vegetative state. Never know what kind of advances could arise in their life to help them. If they were going to be in pain - that would be a different situation.
Scenario two - That is kind of tougher. Some kids hit puberty at 8 or 9, so I can't see a child wanting to die at that age when faced with that situation, more than likely they would be scared of death and would want to live. But, if my child was serious about not wanting to live those 5 more years, I would respect her decision. I just don't honestly see children wanting to die.