He won’t get it until/unless it happens to him. I was the same way once
If everyone was childless, applying Kant's categorical imperative, I think the societal issues would be obvious, as society would cease to exist within 90 years or less. If not everyone can be childless then morally some sufficient amount of people must have children.
The fact that the parents do it for themselves doesn't reduce its importance or benefit to society. It's just a fortunate alignment of incentives.
The problem I see is that further accommodating parents isn't enshrined in law. Parenting is essential work that is undervalued because it is passionate labor.