[dragonwriter]

> That association between college program and career does indicate that some job training is involved and necessary for career growth.

While I'd certainly agree that there are, in fact, at least some career paths for which that is true, but even a job having a preference for certain degrees doesn't have to imply that training is happening; different degree programs could have different filtering effects without being actual training.

And, of course, not all jobs that require degrees are narrowly focussed on specific fields.