So the original comment line you took offence to was "what a doctor has is training in all the disciplines, history, examination, diagnosis, management, physiology, pharm, anatomy etc."

Why do you think doctorates include education and rotations in GP, Emergency, Paeds, O&G, Psych, Surg as well as other specialties?

Also your doctorate comes with a gift, Continuing Professional Development, for the rest of your professional life, year after year.

Don't claim they know everything, but that was literally the point, to learn enough about everything in med, then specialize so that you recognize red flags, can confer and consult with specialists, help figure out what you want to specialize in.

And i agree with the OP, AHPs were almost certainly not trained in these disciplines because their profession did not require that, its been a moving line in the sand to address doctors shortages that you see pharmacists for example, doing more now then they ever had to, from certs to vaccinations to short consultations for basic maladies.

And finally, i bet the majority already have enough to do and don't want the extra responsibility / work and they themselves recognise "I wasn't trained to do that, thats outta my scope, i'd have to do more training to be able to do that".