If we're being honest, it's some % split between the "feature not a bug" case that you outline and credentialing to remove potential competition. Nurses can (a

If we're being honest, it's some % split between the "feature not a bug" case that you outline and credentialing to remove potential competition. Nurses can (and do) do about 75% of the work a doctor does, same with paralegals and lawyers. Have you seen the absurd amount of stuff on the CPA exam? I'm not saying we should allow the untrained to do highly skilled jobs, that's how accidents happen, but the real-world skills for those jobs are often different than the skills learned in law school, med school etc anyways. Not that the credentialing has zero value, it obviously has value, but it's not 100% or even 50% of what makes a good doctor/lawyer/accountant.