“That led to careers in tourism, insurance, and automotive retail management.”
None of those require four years of college education.
Maybe, maybe not. You’d be surprised.
Tourism research requires lots of quantitative work and analytical methods, statistics, sampling methods.
Before insurance, out bio student was a vet tech and operated at a pre-med level for quite a few years. But that was physically demanding and didn’t pay that good, so she went into insurance with much better pay.
If you are that strict in your definitions, then I’d guess only STEM would meet your criteria.