Is Nicola Sturgeon playing politics?

In her 1954 essay ‘The English Aristocracy’, the author Nancy Mitford popularised the descriptions ‘U’, i.e. upper-class or aristocratic, and ‘non-U’, to denote household terms. Although she did not coin the phrase (that credit belongs to the otherwise forgotten linguist Alan S.C. Ross), she brought it to wider public attention. When her friends John Betjeman