Why does Homers mom determined that he should leave Coalwood?

Homer's mom believes he should leave Coalwood to pursue his dreams and potential beyond the confines of their small mining town. She recognizes that his passion for rocket science and desire for a better future could be stifled by the limitations of their environment. By encouraging him to seek opportunities elsewhere, she aims to empower him to achieve his aspirations and break free from the cycle of coal mining that dominates their community.