Half my family are teachers and I know zero who think this is a good idea. I know several who think we should go the other way and adopt the UK system; at 16 you either prep for college or train for a trade (plumber, auto-mechanic, etc).
The idea that even half of the population is able to learn calculus is wishful nonsense. The idea that it would help them at their jobs is doubly so. One of my bowling buddies* is an auto mechanic; he can do in ten minutes what would cost me ten hours and a couple books. He doesn't know a lick of algebra and doesn't need to. Thanks to comparative advantage he makes a living doing things well that I can barely do at all.
The idea that everyone should go to college appeals to the tiny segment of folks who only know people who have gone to college. I work in software and I've never worked for a company where my peers were 100% college graduates. I have also been to the grocery store where the clerk couldn't figure out how to make change.
Education isn't a magic elixir, it is a racket.
* The bowling alley is a mix of blue and white collar. We have English profs, mechanics, lawyers, and carpenters that are all competitive for this minor thing. My bowling coach is an accountant on weekdays.