For my company I follow our state law. It requires an on the job direct supervisor for up to a max of 3 apprentices. A licensed journeynam or master in the same work area and able to see what the apprentices are doing is how I and most of the inspectors enforce this.
Of course as an apprentice gains experience and shows greater abilities, the less close supervision is needed.
I am a firm believer in training.
It is part of our job as journeymen and master electricians.
