Why can Alfred Doolittle's transformation be considered ironic or comical?

Alfred Doolittle's transformation is ironic because he had no desire to transform. Doolittle didn't want the expectations that money afforded him, and he didn't want the luxuries. He didn't want to conform, and he certainly didn't want to get married. An inheritance forced this upon him, and he was too complacent to give it up..... that would have entailed work. All of this is found in Act V. For a more detailed explanation of this comical scene, check out Gradesaver's summary and analysis for the Act.

http://www.gradesaver.com/pygmalion/study-guide/summary-act-v