When we were a boating school for the ICC that steerers require on the continent I had one couple where the wife stood on the bow as they came to each lock, indicting which way to steer. After a couple of locks I told him I could not issue him a licence, as that was evidence of HIS ability, not of his wife signalling skills. He then did the next locks, getting progressively confident on his own. Seeing him again a year or so later he could go into locks with his eyes closed (metaphorically, at least).
I don't decry all modern boating aids, but some of them are rather like having a bike with side wheels - you never really learn the art of balance unaided. In this instance, what happens the day the camera fails?
Tam