* Financial Strain: Walter is deeply invested in the idea of using the insurance money to open a liquor store. He sees it as their family's path to financial stability and freedom. Beneatha's medical school aspirations represent a significant financial drain on the already limited resources. He fears it will jeopardize his dream and potentially put a strain on the family.
* Gender Roles and Expectations: Walter is a product of his time and holds traditional views about gender roles. He sees his responsibility as the man of the family to provide financially, while women are expected to be homemakers. He struggles to understand Beneatha's ambition and sees it as a challenge to his authority.
* Frustration with Beneatha's "Dreaminess": Walter is a practical man focused on tangible goals like money and security. He views Beneatha's dream of becoming a doctor as idealistic and unrealistic. He criticizes her for being "lost in the clouds" and not understanding the harsh realities of life.
* Fear of Losing Her to "White" Aspirations: Walter believes that Beneatha's desire to become a doctor is influenced by white ideals and aspirations. He feels that she is turning her back on her African American heritage and embracing a white world that has historically marginalized and oppressed Black people.
* Desire for a Better Life: Walter wants a better life for his family, but his vision of a good life is based on material possessions and social status. He sees his dream of the liquor store as the key to achieving this, while Beneatha's pursuit of medicine doesn't fit into his vision.
Ultimately, Walter's frustration with Beneatha's ambition stems from a clash of values, priorities, and expectations about the meaning of success and fulfillment. His anger reveals both his own struggles and the complex realities of being Black in a society that limits opportunities and reinforces traditional gender roles.