More than the social sense of the word "normal" I think he was criticizing how the upper class has always resembled the way things should be. For example he talks about things like "They take their tea at two", dreaming in "Proper English", never being overly expressive "When they get excited, they try to hide it". All that really speaks more about the upper class, and the top-down social order of things rather than a basic schoolyard sense of the word "normal"
Other than that the song is pretty self explanatory. It points out that being normal isn't necessarily a good thing, and questions why we even have this pre-determined sense of what is "normal".
More than the social sense of the word "normal" I think he was criticizing how the upper class has always resembled the way things should be. For example he talks about things like "They take their tea at two", dreaming in "Proper English", never being overly expressive "When they get excited, they try to hide it". All that really speaks more about the upper class, and the top-down social order of things rather than a basic schoolyard sense of the word "normal"
Other than that the song is pretty self explanatory. It points out that being normal isn't necessarily a good thing, and questions why we even have this pre-determined sense of what is "normal".