Bathing can be helpful or hurtful. I've raised dragons for over 20 years + hatched 1000's of babies. I never bathed any of the hatchlings, only if they were dirty from their own poo. They all drank when I spritzed them in their plastic rearing tubs, any excess water was wiped up quickly. People are mixing up the idea of " misting" [as you would do a tropical lizard like anoles, some geckos, some chameleons] with giving a small spray that just lets the lizard drink, then evaporates.
As far as dragons developing an R.I, if you look through the threads on this + other forums, the ones that develop them are among the dragons that are bathed. If you Google bearded dragon choked in
bath or aspirated water,they will pop up. Aspiration can lead to an R.I. But many dragons never have a problem with
bathing and do not get sick.
As far as vets recommending
bathing [ even with Pedialyte ] it just got to be one of those things passed on from one to another as the thing to do because of the erroneous thought that beardies take in water through the vent. This doesn't
hydrate the beardie. It only gets
hydrated from the
bath if it drinks in the
bath.There are many exotic vets who pass on wrong info [ ie almost all will treat a dragon that has Y.F. or gout with antibiotics ] Some vets will give an unnecessary enema [ sometimes killing the beardie ] if it hasn't poo'd in a week or so. In reality a few natural laxatives will move the bowels.Reptile medicine is a specialized and relatively newer field and vets do not have all the info + as much learning as they do for dogs + cats. A few years back a poster [ Discojan I believe ] asked if her fat , restless dragon was ready to lay eggs.....it was scratching around frantically + looked very fat. I told her that the dragon was showing laying behavior. The owner took her to her vet , vet said no eggs, don't worry about it. The dragon layed eggs either that day or the next. And this vet had credentials as a zoo vet that she posted here on the site. Another poster took her adult male dragon in for tail rot [ different vet ] The vet amputated the tail so far up that the hemi penes were cut off and a bloody stump was left...pics were posted here, they made me cry. There are many more instances of wrong advice given [ to feed a beardie dog food, to feed a baby 2-3 times a week, etc. given by " exotics " vets.
Anyway, the point is that an " exotics " vet may see a few birds, snakes, turtles + lizards but that doesn't mean they know all about each species and way the best way to feed,
hydrate, etc.
Of course there are excellent vets out there too and they should be consulted for serious problems, deworming, etc.