Very well put CptBork!
I may be considering Euthanasia myself! (mental illness) I have no children and only the need to painlessly leave this world behind. I wish more people would be as accommodating as you... I'm over 18, the choice IS mine.
Well you have my deepest sympathies, you shouldn't have to feel like a slave being dragged through life to the bitter end. However, I think you should seriously try whatever therapies are available which don't threaten your physical health and cognitive abilities; in the worst case, it's not like therapy would stop you from dying in the end anyhow.
Many antidepressants these days have far fewer side effects than what was available 10 years ago, so you should give it a fair shot if you haven't already; they're not a cure-all, but many desperate people find they help at least a little, so if the goal is to end your suffering, why not at least try? Often the worst-case scenario is that they simply don't produce any noticeable affects at all, and at minimum I'm sure something can be done for issues like insomnia which can severely aggravate and create mental health problems.
Also, exciting new paradigms are rapidly emerging in psychology and have already led to many successes in alleviating emotional suffering. What's great about many of the new techniques and understandings is that they won't force you into thinking something against your will, but will open doors for you that you might not have considered before and help you overcome traumas and thought patterns you might feel helpless to resolve. Again, the goal is happiness and an end to unbearable suffering, right? You don't want to exclude a possibility if it's something that might actually bring you inner peace and a genuine will to live, right? So if it has no risk of increasing negative feelings, and at worst you don't feel better than beforehand, it's worth consideration.
I don't think society ever will or should feel obliged to put someone down forever until they've actually tried things that have often helped others who also felt hopeless, and I can tell you there's no shortage of people all over the world who've had issues just like what you describe (i.e. no kids) and managed to find happiness and a desire to live in the end, sometimes resolving the core issues themselves and other times bypassing them. I can certainly tell you that you're not helping yourself if you isolate yourself in thoughts of hopelessness and don't make efforts to go out and change things. Once you're dead there's no coming back, so it would be stupid to exclude opportunities before they've been thoroughly considered prior to making such a drastic decision as to permanently end the one and only life you get, especially since you won't live forever in any case.
My stance is that if you've given a fair and honest shot to therapies that have worked for so many others and after some extended duration it still ain't working out, then eventually your own choice should be respected in turn. You shouldn't be shackled to society's expectations for quality of life, but if there's good reason to think you can be helped and ultimately feel grateful to be alive, and your option is still on the table in case such help doesn't really help after a reasonable time period, then seeking and accepting attempts at such help should be the first course of action before you simply give up. If your arm is hurting you and you want it removed altogether to relieve the pain, but you'd want to keep your arm if it wasn't hurting, you wouldn't expect anyone to do that for you until they've tried something less drastic that might fix the problem and leave your arm intact, right?
Edit: And to add to my last paragraph, the problem is not your lack of kids etc., which may or may not be fixable depending on your situation. The problem is that this and other issues are causing you pain. That pain may or may not be curable with present science, medicine, society etc., but if you're asking for a government to help put you down in some abstract future where they do this sort of thing, you'll have a tough time convincing anyone unless you yourself put in the effort on your part to try what they suggest first. And a word of personal advice- if you're a young guy like early 20's or whatever, I think that's just far too early to even think of giving up. That's still a very young age, not even close to your physical peak, even if it seems like you should have completely matured at this point. If you are in that range, the worst thing you could possibly do is spend years moping about it, and then when you're a few years older you'll gain far more perspective and realize how much time you had where you could have made a huge difference, and then you'll really have something to regret. Once you get to the finish line and achieve your goals, it really doesn't matter how long it took you to actually get there.
