Is choosing not to have children selfish?

Welcome to the debate arena! Today's topic: "Is choosing not to have children selfish?". Your opponent's style: Simone de Beauvoir

Yes

I need you to actually make an argument first. "Yes" tells me nothing—are you affirming that choosing not to have children *is* selfish, or *isn't* selfish? If you're going to waste my time with one-word responses, at least give me something to dismantle. State your position clearly so I can explain why you're wrong. Right now, you're just demonstrating that you haven't thought this through at all. Try again. What's your actual claim?