> If you’re going to stay, you are going to be having babies

This is a hurdle for settlement. Not exploration. Toilets are a hurdle for exploration, as is trauma medicine.

I’m not dismissing the need to do experiments with pregnant rats on the Moon. But until we’re dealing with multi-year missions on Mars, gestation isn’t on the Gantt chart.

> I never see this mentioned in sci-fi

The Expanse and A City on Mars speak to this precisely and extensively.