I've heard similar. Also with family members being taught how to use the morphine IV dripper, and what a fatal dose looks like.

The alternative is for patients to refuse food and water until they die.

I'd been thinking about this a lot because my father was diagnosed with a terminal illness 3+ years ago. We'd discussed euthanasia, and he definitely didn't want to spend his final 6-12 months suffering.

Because he didn't die, the docs took another look and realised he'd been misdiagnosed (and yes, we got 2nd & 3rd opinions after the initial diagnosis).