Even I am young and lean childfree. My reasoning is that non-existence is better than existence. More and more I see the world, more and more I agree with Buddhism's first noble truth that there is suffering in life. There are some moments of joy, but is all of it worth it afterall? It's just a tough question. I don't want to bring any more suffering to this world. There is already so much suffering and I can't do anything about it. So many innocents throughout history have suffered so much. Millions of innocents died in holocaust or nuclear bombs or famines in the last 100 years ago alone. Recently teenagers are getting killed mercilessly in Iran. Life can be so unfair sometimes that it feels like a bad gamble to produce more of it. A child can give great joy to their parents for sure, but they can also cause great suffering. Like there is hardly anything more hurtful in life than the bereavement of your own child. People forget that something that can give you great joy can also give you great pain. And for me, it's not just about me and the happiness I derive from parenting my kid, but also the child who will one day grow into an adult and have to deal with this cruel world and the sheer pain of conscious existence itself. For these reasons I am leaning childfree for now.

The answer to all this is to stop considering it so abstractly and talk to some parents who have been in these situations and actually look at the incident rates. Anything could happen but not all outcomes are as likely. There’s loads of mundane activities we do that have serious life changing events that could happen. A kid is a commitment but also one that is profoundly human that people have been doing successfully for millennia.