I didn't have a point, I had a question.

I proposed that simple bookkeeping is all that's needed to justify if a position in profitable for the company, and why not let a potential employee offer to make it profitable to the company to receive training?

I'm not suggesting that all training is equal, or will require equal resources from an employer.

I tend to think wuf is right that plenty of jobs would pay much less during training, but not actually need to charge the employee for the training, as the net benefit of having a semi-competent person on the staff is greater than the loss of equity by their trainer.