I don't want to keep on about the mil system but a new FI would have to fly with a much more experienced FI every month for 6 -9 months whilst he amassed around 100 hours instruction.
Then he would undergo an upgrade assessment with a senior examiner. Thereafter he would be checked 6 monthly by his immediate boss and then annually by the senior examiners.
Agree that would be a great thing and hard to find a reason why anyone would object to that in industry.