I come from a similarly sheltered, middle class background to Jenny and I totally understand her. Poplar post-war was one of the poorest, more bombed areas of the country and the nurses see some very extreme things. Jenny by the end of the show was a different woman who had experienced things Jenny at the start and I think carries herself well throughout her change. I know if I had trained at a well off hospital and the chimney dumped coal dust everywhere during a birth I'd struggle for a moment