Medical ethicist: Assuming there is a reasonable chance for a cure, it is acceptable to offer experimental treatments for a disease to patients who suffer from extreme symptoms of that disease  Such patients are best able to weigh a treatment' s risks against the benefits of a cure
Ttherefore, it is never acceptable to offer experimental treatments to patients who experience no extreme symptoms of the relevant disease
Someone born and raised in a country, who has lived abroad and then returned, is exceptionally qualified to judge the merits of living in that country. That is why someone who has not lived in that country should not form judgments about the merits of living there.