I find it may be relevant in this case because it is not the grandmother asking the question but presumably someone who might be a position to encourage or discourage.
If it had been “I am in a lot of pain but they won’t let me die”, that would be first person and not third person.
It’s not just family members. Doctors have encouraged patients to choose euthanasia.
I’m not saying whether that is morally good or morally not good.
But I understand you do not wish to respond as it is outside of the scope of your question which was very precise and specific.