3. Doolittle says he is too poor to make good moral choices
Explanation:
Doolittle isn't so much a character as he is a vehicle which Shaw controls for his own emotional purposes. Through Doolittle, Shaw can make numerous ironical pushes at working class ethical quality and to make extra remarks on class qualifications and on class habits. (It is particularly clever when Eliza indicates out Higgins that the Professor's supposed fairness in the manner he treats individuals demonstrates that he has indistinguishable habits from her dad since Doolittle makes no class refinements either: the relationship wounds Higgins in light of the fact that he needs to recognize that it is basically valid.)