Bernard Shaw was a leading playwright and intellectual. His interest in language led to writting “Pygmalion” which is about self-development, language etc & is the basis of “My Fair Lady”. In the late 19th century, pronounciation has evolved across localities, there was no telecommunications which could standardize English pronounciation and grammar. Technology has led to assimilation of certain English accents….This “problem” (that the Doctor is highting) has dissipated in the 20th century….