If taking a break to focus on parenting was more acceptable, anyone (man/woman/nonbinary) who wanted to do this would benefit.
Many careers are built around this idea that you spend 5-10 years, with no breaks, in your late 20s and 30s working on something. What if taking a substantial chunk of time off was more common (for anyone)?
Unfortunately, young people also don't have money. That's the time period when many people feel a lot of pressure to accumulate savings -- often, that might specifically be so that they can afford to raise a child in the future.
Acceptance of multigenerational households, living with grandparents, and raising kids there, would be an option and allow people in their 20s to become parents before their careers have taken off. But even for those who have loving and supportive grandparents, that also can be a major strain on a relationship.
Wow I don't even know what to say haha.