I don't know whether I should answer the previous question about evidence. In my brief, I cited the study by Ms. de Boer and the Council of Canadian Academies, which reviewed the scientific case literature. It includes the case of the person I spoke about earlier, in the Netherlands. So you could consult my brief.
Regarding dementia, I find it extremely sad that medical assistance in dying is considered to be preferable to the palliative and geriatric care offered in Canada, as was the case for your mother. That is exactly what I want to bring into the debate.
I understand your sadness, because families and the people who care for the aged tell me exactly the same thing as you. Instead of choosing health care, patients prefer to receive medical assistance in dying or active euthanasia, as we practice it here, much more often than assisted suicide. The system is ageist and does not promote the best interests of the patients and greater benevolence toward them. There is still a lot of organizational mistreatment, physical and otherwise, in our health care systems. Medical assistance in dying seems to be a solution. But in my opinion, the solution consists not of eliminating patients, but of caring for them.