...But my question is has anyone gone back to school for career change or anything like that? How did it work out? Positives? Cons?
Positives of my additional degree work included that it was easy as hell. I know that's a concern for many older, "non-traditional" students. I feared the younger kids would run circles around me. Instead, it was the other way around.
In fact, I was consistently on the dean's list, perfect 4.0, and on one campus I was their sole choice as their rep to the national college "Who's Who" of outstanding students, or some such publication. I sure never did that my first times at college, I had terrible academic records.
Second thing is that I really enjoyed school these additional times. It was actually fun for once. It's amazing what a little life experience and broadened world view can do for you. Which also enabled me to "read" my professors (some younger than me), just as well as I read the course material itself, to guess what key elements from the tons of readings they were likely to want us to know.
I'd study & memorize those parts, and skim over the rest, rather than trying to swallow it all as some students would. I was invariably correct and breezed through tests and papers without breaking a sweat.
I used my degrees to assist me in Army promotion, and positions in education after I retired. But not really wanting to work further as my health continued to decline, or needing it that badly. That was the very personal "con" to my additional degree pursuits. But I found satisfying outlets in returning to outdoor life, and doing volunteer work at my own pace. Not to mention seeking men with whom to share our interests and resources.
So on balance I'd endorse your idea. Degree work can be enjoyable in itself, and if properly chosen, lead to more career opportunities. If you can do it, I'd do it.