I support voluntary euthanasia with sensible rules to prevent abuse. I don't think criteria about age, having children, dependents, or debts should be involved as they are irrelevant. Not sure what you mean by a waiting period but it doesn't seem necessary and I think it would disadvantage some people. I don't see why doctor-patient confidentiality should be breached and especially why a workplace should be informed. I think the criteria would need to be wider than just pain, as there are many other symptoms of illness that may be intractable. And IMO the illness need not be terminal, either.
In summary, I think suicide should be legalised, period. There are times when a person is not physically capable of doing this, so medical assistance should be provided. Doctors should be allowed to opt out if they wish, but patients should be told at the outset that this doctor does not provide this service. If necessary, government should incentivise people to train for the necessary skills, so that there are enough people able to help. There are many doctors who want to be able to provide this service, including a NZ doctor who developed terminal cancer and used his story to join the law reform campaign.
I have always said that if I was diagnosed with dementia or another progressive illness that would totally destroy my quality of life, I would end my life before things progressed beyond the point where I could act. I would much prefer it if it was legal and straightforward for a doctor to do it for me, as it has more chance of success, and would probably be more humane. My family's views on the matter are irrelevant because I believe in absolute bodily autonomy. They all know I feel this way and they accept it and agree. If I had to do this I would certainly let people know and have a process of putting my affairs in order first.
There was a case recently in NZ of an elderly couple who were long time advocates for voluntary euthanasia law reform. Their four children were well aware of their views and supported their parents in them. One day one of the children found them deceased, lying on their bed holding hands. I think that was beautiful, and the ultimate expression of self determination and dignity.
I value the preciousness of life so much that I would never consider ending mine unless my current or future distress was significant. If that happens, I hope the law will have been changed so that I can make my own decision, prevent suffering, and die with dignity.