It’s a complicated topic. Last year I read this book… heavy stuff. American couple, where husband wanted the described Swiss option (non-profit Dignitas)
excerpt from link
In multiple interviews with Dignitas personnel, Brian must prove that he is cogent enough to show “discernment and determination.” The couple know that if they wait too long, he will no longer be capable of passing this test. They hit an upsetting delay when they learn that Brian’s neurologist had written on the MRI report that the reason for the test was a “major depressive episode.” Depression is a deal-breaker for Dignitas, which does not want to be in the business of helping clinically depressed people commit suicide. Brian and Bloom have to prove that the neurologist’s note is simply not true.