I'm not ignoring anything. I thought the data was self-evident but I'm happy to spell it out.
In the COW states, where there the demand for mortgage work exceeds the supply of appraisers, fees have gone up significantly. I don't know about you, but I think there is enough margin in a $600 to $1,000 appraisal fee to support the training of appraisers.
In CA and FL, where the supply of appraisers exceeds the demand such that appraisers are doing work for $300 or less, the margin isn't there. But there is an over-supply as things exist, no?
Earlier I asked if you (I should have made that a general statement) had attended any regulator presentations.
Now, I'll ask in general, has anyone really put together an appraiser trainee program? Well, guess what.. I have.
I had an employee manual and handbook.
Trainees were hired as employees and worked the first 30+ days in the office to understand the ordering process and basic property research process. They were also exposed to finished reports; what they looked like and what the content expectation was.
I took them out to train them on how to measure a house. Interestingly enough, this was usually where the first drop-out cut occurred. Some people could not get comfortable with how to measure and inspect a property (or, I wasn't a good trainer).
From there, they would work with me (or another assigned appraiser) on reports.
At a point, they were sufficiently trained to inspect on their own (basic house; I work in an urban/suburban market so basic homes are a plenty). After a couple of years, they were able to get their own license; most, at that point, opted to become an Independent Contractor.
Training appraisers was personally and professionally satisfying. And, after the initial investment of time and money, my firm grew because of it. With rare exceptions, most of the appraisers continued to take work from my firm even when they had their own clients (which I encouraged them to get). I never was worried and never had (to the best of my knowledge) a trainee "steal" a client of mine. And, my attitude was, "Well, if a newly licensed appraiser can steal a client of mine, I have bigger problems than that!"
But a good training program is a lot of work. I could have generated more money in the short term by just doing the work myself. The break-even point came (for me) just about when they were able to upgrade. If I did my job correctly as an employer (made it attractive to continue to work with me at my firm) then I would reap the reward. It worked for me and I'm glad to have done it. I wouldn't want to take it on again because I'm getting too old to work those kind of hours (I'm working more than I want to right now! LOL!). But there are plenty of other competent appraisers, with the ability to put together a good training program who can do it as well if not better than I did.
Now I'm not sure how long the COW states have been getting the higher fees? At least a year, but I don't know if it has been 2-years. But taking on a trainee is not something most should consider to do on a whim.
Not everyone is set-up in their business model to take on a trainee.
Some don't want to do it, period.
For the rest who are interested and want to do it, I'm sure they are trying to gauge how long this imbalance will last. I wouldn't blame anyone for taking a wait-and-see attitude while reaping the higher fees now (and I don't consider that higher fee to be a windfall; they are being paid for the work they are doing based on the demand for their work. As should we all). Lastly, even if 50 appraisers today decided to take on trainees tomorrow, we probably wouldn't see that impact for at least 12-months (the point where a trainee can do the inspection on their own and put together the basic components of the report); and that impact wouldn't be significant but incremental over the next 12-24 months.
By the way, as I understand it, many lenders will not take on an appraiser on their list (either direct or via their agent, an AMC) until they have 3-5 years licensed or certified experience. So as it stands, taking on a trainee now is a 5-7 year commitment (at least from the trainee's perspective if they want to get residential mortgage work).
Again, I don't think I ignored anything.

Where the competition is fierce and it affects fees, there isn't going to be a lot of training going on. Where demand is high and fees are higher, the margin necessary to pay for training exist.
But if you see it differently, I'd like to hear it.