I'm writing an essay about why people go to college. I want to express that there are many different reasons for going to college.
Many people, from very different background, attend college or
university rather than enter workforce immediately after high school.
The reasons may vary from trying to meet parents' expectation to
fulfilling intellectual curiosity.
I'm not sure if I have used vary from correctly.
I'm wondering is it true that when using "reasons vary from A to B" reason A must be a simple reason and reason B must be a complex reason?