Fer God's sake, everyone, an education is never wasted just because one does something else than what one studied.
We learn for the sake of learning - to make us fuller, rounder, more interesting and more engaged human beings.
Career is entirely separate from education.
We might go into our field of education as a career, but we might not. Doesn't matter, and doesn't mean the education was a waste of time or money.
ARGH!!!!!
God, I hate that shit.
Education - except at tech schools - is not a utilitarian consumable thingy dingy like a twinkie or a bass fishing boat.

"A lot of people don't use their degrees" - holy fuck, that is so loaded with bullshit and misunderstanding it makes me... well, it makes me write this post.
Fucking hell.
A degree is not something one "uses" like a wrench or a vial of astro-glide; a degree is something one pursues and earns and which forever blesses one with meaningfulness and an expanded mind. (Unless, perhaps, one goes to tech school or one of those non-accredited fundamentalist Christian schools).