The rhetoric I heard from both my parents, my teachers, and my guidance consoler during my junior and senior year in high school (2000-2001) was "Employers want a college degree. It doesn't matter
what degree you get, unless you want to do STEM, so pick something that interests you. College really just signals to an employer that you 'know how to learn.'"
The first part is mostly true: employers want a college degree. The second part is also true: STEM (with the exception of software development) tends to prefer people with specific degrees. The third part, however, is total bullshit, and it got A LOT of people into a A LOT of debt. The reality is employers are incredibly picky not just over a candidate's degree, but these days they're much less willing to invest in employee training. They want candidates who can show up and do the job on day 1.
My hunch is that lot of the college advice was doled out to students based upon the Baby Boomer's understanding of the world: College degrees are a hot item employers want, and they (usually) don't care what it's in! The employer will train you at your job and you just need the necessary reading, writing, and math skills. This probably was the case in the 1960s, 70s, and early 80s but by the 90s things had changed.
(As an aside- I ended up dropping out of college after 1.5 years and avoided debt. Opportunity knocked and probably saved me from tons of debt).