Splash: That would not have been a specific criteria, unless the position she applied for was qualification specific. However, the qualifications for cabin crew with long-haul carriers has increased ten-fold over the years.
Having said that, there are a 'few' non European carriers who have an entirely different view on hiring and I would counsel any young girl considering working for them!
Long-haul cabin service is a career focused role. By the way, Europe is not considered long-haul if that helps better define the understanding of the carriers involved.
Be well
Fr Bill