Because there is a strong pro-male bias in many poor countries.
Hope this helps!
I'll answer this base on a general point of view. Socioeconomic adversity is synonymous with inequality therefore in all underdeveloped countries is experienced by the lack of resources to access different services such as health, education etc which translates into a reduction in the quality of life which can mean a lower expectation of life in some regions.
Answer:
there was an uncertain supply of workers
Explanation:
The plantation economy blossomed in Southern America and because of this, Southern plantation owners were in need of more laborers. They resorted to <em>"indentured servants."</em> These servants were tied to help in the plantation for <em>5 to 7 years</em> and after which, they'd already be set free. In exchange, they'd be given<em> shelter, food and clothing. </em>However, <em>most of the servants didn't survive long enough to complete their contract. </em>Many died because of diseases while others suffered under very cruel masters. It was also hard to form families because of a huge ratio gap between men and women. This decreased the population of the indentured servants and created an uncertain supply of workers.