Thing is, even if there do exist pretty girls like that living in the boondocks, they will inevitably move out to the city because they themselves know they can earn more money there with their beauty.
You don't have to specifically dig in dirt all day with that kind of education. You could work in sales, logistics, research, loans, insurances...
Also, there's a chance that the dad thought it was only a casual whim of hers. That she'd quit after seeing for herself how hard it is to work in this field.