Until roughly 1980, US corporations did lots of (paid) training. Some still do; McDonalds operates Hamburger University. They found that a lot of new hires left the company soon after training—the companies couldn’t capture the value of the training very well. Because of that they shifted toward hiring college graduates (pre-trained for general skills, if not for company specifics (which don’t travel well anyway)) and, later, unpaid internships.
Until roughly 1980, US corporations did lots of (paid) training. Some still do; McDonalds operates Hamburger University. They found that a lot of new hires left the company soon after training—the companies couldn’t capture the value of the training very well. Because of that they shifted toward hiring college graduates (pre-trained for general skills, if not for company specifics (which don’t travel well anyway)) and, later, unpaid internships.