Why was Alfred Doolittle willing to take money for Eliza?

Alfred Doolittle was willing to take money for Eliza because he believed it was a practical solution to his financial struggles. He saw the money as a way to improve his own circumstances, allowing him to live more comfortably without the burdens of responsibility. Additionally, Doolittle's character embodies a carefree, opportunistic attitude, so accepting money for his daughter's future aligned with his self-interest and his belief in the importance of enjoying life without being tied down by societal expectations.