Professional organizations generally advocate against lowering barriers to entry to their market. Delegating regulatory controls to a professional organization

Professional organizations generally advocate against lowering barriers to entry to their market. Delegating regulatory controls to a professional organization has to done very carefully. My understanding is that in the US, this is one reason why there is a limited supply of new physicians. Of course the health care industry is quite complicated with many conflicting and interacting incentives and regulatory distortions to a true free market.