A lot of people tend to want to study things they’re interested in, even if it doesn’t lead to a high paying job. You said yourself she was interested in English literature so that’s why she went with that as her major. It’s also a lot easier to learn and study something you actually care about than something you find boring or are just doing it to get paid. Like if I went to college, I’d find film studies classes or possibly some math ones way more for me cause I like that stuff, but if you tried to force me to take classes to become a doctor, lawyer, or trade school I’d flunk out hard and/or struggle to even get a passing grade.