The Army will teach you for free.
I am a janitor and I started “learning on the job” without a formal training course but $$$ is on the table and government is in the picture.
They’ll even pay you while you are trained! 😀
Yeah, but that includes the superior instructional capabilities of a drill sergeant whose total pay seems to run $60,000 - $90,000 per year, and there is the added benefit of extra instruction with no additional pay if you can't get it right. So, it's not exactly free to the taxpayer.
Apparently, Jocko Willink’s first job upon reporting to his SEAL Team was to clean the toilets.