Examine this play’s view of marriage. Is marriage desirable and positive?

Marriage and Prostitution are institutions that are very much related in Shaw's plays, especially in Mrs. Warren's profession. From his unusual standpoint of being committed to a celibate marriage, Shaw apparently feels free to denounce marriage as an exchange of sexuality for money similar to prostitution (even though this was not happening in his own marriage). Ironically, while her father expresses no regrets when he is led to believe that Liza will take up this profession, it is she who denounces it. She declares that she was less degraded as a flower-seller than as a "genteel" lady trying to make an appropriate marriage--because as a flower-seller, at least, she wasn't selling her body.