It's not limited to the terminally ill though. It is also for “constant and unbearable physical or mental suffering that cannot be alleviated”.
Also found this interesting from Canada
Belgian Children Being Euthanized, Canada Also Embraces Culture of Legally Assisted Suicide | CBN News
Also found this interesting from Canada
Belgian Children Being Euthanized, Canada Also Embraces Culture of Legally Assisted Suicide | CBN News
Ontario recently passed a law requiring all doctors to kill a legally qualified patient even though the judge acknowledged it violated the religious and conscience rights of doctors who did not want to perform legally assisted suicides.
In the context being discussed? The line is pretty thin, IMO. This isn't "suicide as a permanent solution to a temporary problem". This is checking out on your own terms while terminally ill.