Although there are more supports for family life is Sweden, longer leave periods etc, you still usually have both parents working. The possibility of living on one wage with one parent at home with the kids would go further than that. In principal, I do think that would help. In practice, I don’t know how you achieve it.
The documentary maker I linked at the beginning said that he had found 95% of people still want to have children, and if they have one they usually have 2. There were far more women having zero, but most of them had not made a decision to be child free. They had run out of time, while always expecting it would happen one day (Unplanned childlessness he called it).Better education about fertility timescales might help, but I also think there is now a cultural expectation in men and women to date and live together for years and years without thinking about marriage and kids til they’re 30 or so. Then if that relationship breaks down, the woman is ona much tighter timescale to find someone else. He found that if a woman got to 30 without a child there was only a 50% chance she would become a mother, not purely based on fertility but on being able to find a willing and suitable partner at the right time etc.
Personally I’m going to be telling my girls that if they want to be mothers they need to have this in mind when dating in their 20s and not waste time with unsuitable men (as I did)! Especially now I know about the declining sperm quality.