Some people are into math, science, or writing. Some are into working with their hands and building things. And they generally know that by the time they are high school seniors.
And most of those will go into the trades. That's what I did and if I have a single regret in my life it's that I didn't go to college.
Your complaint against kids going to college is that they will rack up student debt. Your answer is that kids shouldn't go to college.
My answer is to subsidize education so that anyone who wants to pursue any field of study can do so. If they choose trade schools those also would be subsidized.
You apparently see education as nothing more than a means to a paycheck. I see it as an important life experience that will set the tone for a more successful life.