But when you decide to have children, although it is essentially a selfish act, (something you do because you want a child, not because the world needs yet another child or your egg is desperate to see the world...) you should at least consider what you can offer the child, should you not? Consider the life you are bringing them into the world to lead? How you will raise and support them?
Of course, none of us know when we'll die, but having a child in your seventies, well, not exactly favourable betting odds, is it?
Having a child should not be all about your needs, your wants, your future care requirements. This is a person you are choosing to bring into the world and you owe them more than you dying when they're five, or them visting you in the nursing home so they can show you what they drew in school that day! It's not fair to the child.