Notwithstanding all the other ramifications of these proposed changes, this particular idea merely returns classifications to yesteryear.
Public trainers and owner- trainers were the only categories then.
I well recall the resistance to the idea of the permit-holder, when it was brought in.
Objections from the Trainers ' Assn branch that I was involved with ( Canterbury/Westland ) included worries about undercutting fees, and dropping standards of service. Also, the training of young folk, either potential trainers or apprentice jockeys, was going to be compromised.
Subsequently, permit-holders were not allowed to have apprentices, but that has, like many rules/standards, has been slowly eroded and now we find apprentices being indentured to trainers who are away at their main job for the day.
I wonder, however, where the likes of say, Lance Noble fits? Essentially now a private trainer for the Lindsays/Cambridge Stud, but certainly a professional of good repute for a long time.
And where does Te Akau fit? Multiple owners, yes, but the 'operation' is all-encompassing, so Jamie could, at a stretch, be a 'private ' trainer himself.
Typically, little thought put into terminology and ramifications thereof.
As J.B says, young trainers over the ditch were steered towards the more provincial tracks, with only A class trainers permitted stabling at the main city tracks. I don't know whether that was a specific policy, or whether the cost of such stabling meant that the provincial/country option is simply more suitable for one starting out.
Clearly, with country and provincial tracks in NZ getting squeezed out both by attrition and policy, that option won't be available for new trainers here.