You need better sources.
There are now 23 accredited AA programs with several more in the development stages. There will be over 400 new CAAs this year, 500 next year, and that number keeps increasing as program numbers increase. That's a far cry from 25 a year when I started my career.
I'm not aware of any AA programs being blocked by CRNAs. Of course they are constantly opposing legislation in any state in which it is proposed, but we've added three new states in the last 12 months (WA, VA, TN) and there is action in a number of other states as well.
It takes time to increase the CAA presence in any state and TN will be no exception. The best way to do that is to add new programs, and there is already a program in development in Nashville, the planning for which started well before the signing of enabling legislation by the governor a few weeks ago. We don't go into new states without there being interest in CAAs going there - there is and has been a Tennessee Academy of Anesthesiologist Assistants (TNAAA) for several years, laying the groundwork for CAA legislation and practice in TN, with plenty of support from the Tennessee Society of Anesthesiologists.
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CAAs will indeed expect to be paid the same as CRNAs in the same practice doing the same work. Why wouldn't we? In medically directed practices there is not a single thing a CRNA can do that a CAA cannot. In my practice, the only difference in job descriptions is the title at the top of the form. Supply and demand is what sets compensation, as it does in all fields everywhere.
I'm guessing you've never personally worked with CAAs. I just retired after 44 years as a CAA. I took call all but the last three years of my career. Of course there are CAAs and CRNAs that are just interested in shift work and limited schedules, but that's true of anesthesiologists as well. My practice for the last 3+ decades has both anesthetists and anesthesiologists in-house 24/7/365 and does over 100k cases per year. We run 60% of our OR's after 3pm each day, and every one of them is covered by a CAA or CRNA. We are a fully medically directed practice.