Actually I have always been for cremation. Of course anyone dying without insurance has little say in what happens to their body after their spirit transitions. Furnerals are really for those of us who are left behind. I've seen families go into major debt to have a "proper" send off.
We learn early on that we are evenutally going to die. Unless one is a child they should either set aside money or have a funeral policy if they want to "go out in style".
Having said that if a person was a Veteran there probably is some government assistance available. Outside of that I can't think of any other public funds to help out.