This is rather off the point of the thread, so please excuse me. I just wanted to say that some girls WERE encouraged academically in the 1950s and even more so in the 1960s. The 11+ exam did not distinguish between boys and girls, and high-achieving girls got places at very academic state-run grammar schools. There were also fee-paying academic girls' schools, eg the GPDST network. I'm not saying that this was good, but it definitely happened.
Admittedly, there were fewer university places for girls, especially at Oxbridge, and, while many bright girls were encouraged to become teachers or nurses, they were not helped to set their sights on a wider range of opportunities, eg in the law, science/medicine, finance or business management.
I apologise for mentioning the issue of class, but I think that in the 1950s and 1960s a lot more depended on social expectations and background than it does today. Society was more class-ridden, less fluid. It was socially easier for girls from professional families to aim for a high-flying academic career - especially if their mother had a profession (role-model etc). 'Brainy' girls did face prejudice as they applied for jobs (no equal opportunities legislation). But I really don't think that people thought 'looks were everything'.
People were thinner in the 1950s and 1960s - although for some the ideal shape was curvy, as earlier poster said. (But even Marilyn Monroe was not that big by modern standards starcasm.net/archives/169858.) The other ideal was very slim and well groomed Audrey Hepburn - 'Breakfast at Tiffany's' was 1961. Really skinny, boyish, looks - Twiggy as a teenager (famous from 1966 onwards) - became fashionable in the mid-late 1960s/early 1970s.