No. Up until very recently (the most recent recession, perhaps), simply having a college degree was thought of as being a road to a comfortable middle class life. To this day career counselling focuses almost completely on interests and lifestyle and ignores salary. Unless a student has a mentor to guide them, it is very easy to go through college blistfully unaware of the realities that exist once you are in the job market.
I don't agree with your assessment that this is a completely recent phenomenon.
"Is a college degree enough?" was a pervasive question when I got out of undergrad in 1991 since we were in a recession. My placement center and many magazines had "What is this degree worth?" compilations. This same information has been available online for at least the last 10+ years.
Ironically, I always thought of myself as being pretty blissfully unaware and unthoughtful of my own career and where I was headed... but I knew what my salary and job prospects were for my career before I settled on my major when I was a Sophomore in college.
Sounds like you were a much better planner than most college students. I don't think that salary research is of much help for 18 year olds. It's hard to gauge what a good salary is at that age. This is where mentorship and parenting can be of great help. But we're still at a point where a minority of adults have college degrees so many parents believe sending college is the silver bullet to a good life.