I doubt very much that the intelligence of the girls who work at Hooters is substantially different from the girls who do not. It may be true that many pretty girls are given the impression that they need not try hard to acquire an education. Modelling is more highly regarded, but otherwise different only in the number of males attempting to grope them. And I believe that pretty girls' mothers not only do not encourage them to enter professions, they often discourage it out of jealousy (Admittedly based on a small number of observationa.)