Don't see any issue with the N/L system,and don't see how it's humiliating as any new driver would go thru the same process nowadays. It allows the police to quickly identify if you are breaking any of the restrictions imposed on new drivers. Wouldn't be surprised if whenever we move to transmitter plates that the signs get abolished.
What is humilating is the kids that turn the sign sideways to become a Z. Can't imagine how cool they must be.