Please don't recommend suicide. If you, OP or someone you know is struggling with suicidal thoughts, please call the National Suicide Prevention Lifeline at 1-800-273-8255.
I'm not recommending suicide per se, but it's there if it's needed. Anyway, if you want your comment to be more applicable to an international audience, consider linking to findahelpline.com in addition to the National Suicide Prevention Lifeline.
I don't know that the thought itself is depressing, suicide is a fact of life and everyone with his mental faculties is well aware of it. We indeed don't "have to" do anything, but in reality we do; our brains are programmed to keep on living no matter what.
Or you can just get rich and emotionally self-sufficient enough to never depend on anyone. Although it's probably good to have end of life plan for when your body completely fails you because of old age.
Where are you spending riches in order to get food, maintain your house and other property, connect with the news, deal with matters of state etc? On other people. Money won't make them go away.
