They're open to showing me how to process dentures/partials, as well as some basic repairs. Do about a week of teaching.
As a dentist, worth being exposed to that stuff? I would assume so, right? Save on some basic lab bills, same day repairs?
I don't think you need to learn how to process dentures and partials. I think what's more important is the dental materials that they use. We're not taught enough about dental materials in dental school and all the wonderful materials out there besides the crap that they have in dschool. There's not much money in removables on an hourly basis. It's worth being exposed, but you need to keep in mind how it's going to work in clinical practice. I would be interested in the acrylic injection systems, best materials for chairside relines, stones/gypsum used, porcelains, emax baking/zirconia sintering, sandblasting intaglios, adding characterization to porcelain through correction firings, etc... Things that I think are applicable in real practice.
If you were to do dentures, it would be useful to know how to repair dentures you made. If someone else made the denture, I sure as hell wouldn't get caught repairing it. You touch it, you own it.
Now, if you're going to run a denture mill, by all means, learn the process so you can incorporate it into your denture mill. Same day dentures can be profitable (by volume), especially on the lower income segment.
No, you don't owe it to your patients to understand how appliances and prostheses that you charge them a lot of $$$ are actually made.
Don't be one of those dentists that have the assistant make an alginate impression and send it to the lab with a note "Go to finish RPD, shade A2"

... if only it were that easy to get a quality removable prosthetic. It works if it's a no-warranty denture, once it's in, no refunds or exchanges. Otherwise, it's a world of headaches and post-op adjustments