We do know that people who go to college end up making significantly more on average than those who do not (and that goes up with each new degree). Do all people that go to college make more? Absolutely not. Those are just the averages. Everyone has anecdotal stories - but those aren’t really relevant in proving a point.
Yep- I mean you see that in all the studies and reviews- even for people that get general studies degrees.
Plus, companies and industries will always seek minimum qualifications to weed people out. For many companies, that will be a 4 year degree- or a 2 year degree at a minimum.
Plus, again - it's also a marketing thing for the company. When they advertise and tell their customers, 80% of our staff have a 2 year or 4 year degree, they do that because it attracts their customers. If their customers didn't care, they wouldn't make it a big deal. But if their customers care and ask about it, they are going to want to hire those folks.