Based on actual data urban individuals (80% of the pop) aren't dependent upon rurals (20% of the pop) having babies because by the numbers most of the native born sons and daughters are born in urban and suburban areas. In fact both are dependent upon immigration to maintain the same level of population.
https://www.cdc.gov/mmwr/volumes/67/wr/mm6745a9.htm https://www.census.gov/library/stories/2017/08/rural-america...
Based on actual data urban individuals (80% of the pop) aren't dependent upon rurals (20% of the pop) having babies because by the numbers most of the native born sons and daughters are born in urban and suburban areas. In fact both are dependent upon immigration to maintain the same level of population.