[user104658]

How is it even controversial? She's not saying that everyone should consider it, she's saying that she would...

Although I suppose it's the "if I felt like a burden" part as that's exactly what euthanasia campaigners want to avoid. People who are still in themselves happy enough to be alive choosing it because they feel like a burden. When euthanasia is considered, it should really only be when quality of life has become so poor (or will soon become so poor), and with no chance for improvement, that the person themself just doesn't want to carry on with it. Not because they feel like an emotional, or even worse, financial drain on other people.