What used to be lower skilled labor is now done by robots. Robots do warehouse stocking/packing/shipping. Robots manufacture things from big to small. I use robots to clean my house. The day will come when taxi's are replaced by self driving cars. What is the point of this argument? We have changed our world and the social economics that were the norm of the past, are not the norms of the future. The need for high tech workers, at a wide range of skill levels will continue to drive many in college.
The real challenges ahead are not those of the past. How do we develop the workforce of the future? How do we develop the new social economic models where large sections of previously employed are replaced by automation - how do we develop the policies and models to balance societal benefits?
And how do we fi our education system to support this new world. I doubt many would say our current system is adequate and meeting our needs - how do you fix it?
This is bigger than student debt and college costs - these are the just the tip of the iceberg