I wore gloves (or a single glove) when handling film when I printed in a commercial lab. Your hands can't be oil-free all day,
and there is enough acid in skin oil that it can etch film, or even glass, if left on long enough.
However, for handling my own film in loading, I've never worn gloves, especially in a changing bag where the sense of touch needs to be as good as possible.
If heath and humidity are a problem, I would suggest purchasing a changing
tent or building a changing box. In both cases there will be more room, hence more air circulation.
For me, I find a room I could make light tight. Heat and humidity weren't really an issue for me with the changing bag, it was the damn bag being all collapsed on my hands, which interfered with my focus on the feel of the film going onto the reels.
That said, I really need to get some Hewes reels. And a new tank.
Edit: I totally forgot that in the lab we sometimes used
these, especially helpful for those who were checking the prints prior to sending back to the photographer.