My deep respect for this decision. There‘s this German saying - you ought to go when things are at their best. The older I grow, the more I‘m believing that quality of life is what we should always optimize for. Not duration, anyway. Or - both, without compromising the other too much?
I do think the point of where quality of life is declining too much is highly individual. And I hope we keep improving prophylaxis and treatments such that most people can turn 100 and still feel like they’re getting something out of life.