This is a post on Gene Expression, found on Science Blogs, which puts numbers from The Audacious Epigone into charts showing that people report more often having time on their hands that they don't know what to do with as they get fewer words right in a vocabulary test or have a lower highest degree earned. Smarter, more educated people are less bored.
So one* answer to "What does a pretty little thing like you need with an education?" is "So I won't be bored."
*Yes, yes, another is to spill a glass of wine on his shirt, stomp on his instep, and tell him it's to escape him and his kind, but I'm being civil here. It's Christmas.