The business of Gertrude assuming Daphne is a virgin is absurd. Firstly, given the amount of dating on Frasier, virginity isn't that common in their work and social circles. Secondly, Daphne is hardly a teenager. Thirdly, and at the risk of slagging off my own country, the UK has the highest rate of teenage pregnancy in Europe. Partly, it's because of the drinking culture that starts when most kids are in their mid teens. As we know, Gertrude likes a drink herself and her husband is an habitual boozer. All of this makes it unlikely that Daphe would be a virgin. Finally, there is no cultural equivalent amongst our teenagers of that whole purity/no sex before marriage vow that some US teens make.
"If this goes on, my beloved 'earers, it will be my painful duty to
rot this bargee." Stalky drew a long breath through his nose.