I'm a "non-regular" RV driver, although I do have a fair amount of experience highway towing and helping hook up a trailer. I'm not adept at hooking up and not very good at backing, although I do have more experience than your wife.
How about if she takes the kids and stays in the cabin with the friends? That would work OK if there is a sofa or somewhere she can sleep, kids can take something to sleep on in the floor. Apparently the point is to spend time with friends, not use the RV.
If I were her, I wouldn't want to do it even without the RV, and definitely not with it at her skill level. She will probably have to back into a parking spot (or out of a spot), which will take some practice she doesn't have.
I'm pretty much with you, taking the RV is kind of a recipe for disaster, and if she has good judgement she would not be willing to do it. If she can't see the pitfalls, you may have to point them out. If she won't stay home or go without the RV, you may have to really stand firm on her not taking it.
A good friend of mine told me that she and her hubby resolve conflicts by a rating scale. If NOT going for YOU rates a 5, and going for HER rates a 10, you figure out a way for her to go, even if you have to go too. But if going, for HER rates only a 4, then you all stay home.
If it's any consolation, there might be no need to unhook the RV from the truck if you are there only 24 hours. So a little less work involved.
