Why is the flower girl so upset that the gentlemen is recording her speech in the pygmalion?

In George Bernard Shaw's "Pygmalion," the flower girl, Eliza Doolittle, is upset that the gentleman is recording her speech because she feels humiliated and objectified. She perceives the act as a mockery of her working-class background and her struggle to be taken seriously. Her speech, which reflects her social status, becomes a subject of ridicule rather than a genuine interaction, intensifying her feelings of vulnerability and frustration.