Go for it.
My situation: Although I did get my Associate's in Electronics right out of high school, and that along with my later Electrical classes, training, and licenses, is primarily what I utilize in my current career, I did "go back to school" in my early 30's to complete a Bachelor's degree, which I did complete when I was 35.
I really didn't care what it was in, so I simply got my B.S. in Management/Org Dev because it was relatively easy (no calculus or foreign language), classes were all in the evening (I have a family and a life of course), and it satisfies my employer's four year degree requirement if I ever want to leave my current technical job and pursue a position in management.
Not to mention being a stepping stone if I ever get crazy ambitious and decide to pursue an MBA or a Doctor of Jurisprudence when and if I ever grow up.
As far as degrees to pursue, and regardless of my own degree, I would NOT advise pursuing a degree in Management unless you are already a manager and simply need the credentuals.
Look into a technical field such as computer/information technology/electronics, or a degree in the medical field.
And do not overlook Associate's degrees and your local community college.
Two year degrees are often just the thing to opening new careers without the tremendous time requirements of four year degrees, and are often geared for the mature, career transitioning student.
It is a fact that many if not most four year institutions are simply geared for the "fresh out of high school" demographic.
Whatever you do, good luck.
Remember, in a few years you're going to be a few years older either with or without a degree.