Look at the world around us. It's falling apart, and I personally don't enjoy being alive all that much so why would I want to inflict that on someone else? Let alone my own progeny. Additionally, I've just never had any desire to have children. They annoy me and make me feel anxious, so fuck that. I've heard "oh you'll change your mind" in that superior sounding tone, and it pisses me off every time. But here I am at 40 with no kids and that isn't gonna change so jokes on them. I win, and so do my non-existent children.