Employees could pay for their own training, and receive a wage premium for their trouble? That's what happens now, and it seems to work well.
The only real issue is that the education establishment seems to sell a lot of low quality training that doesn't provide much in the way of job skills. But that's an issue with the educational establishment, not with the purchasers of skilled labor.
The only real issue is that the education establishment seems to sell a lot of low quality training that doesn't provide much in the way of job skills. But that's an issue with the educational establishment, not with the purchasers of skilled labor.