Given the solidity and protective purpose of a thimble, I’d call it more of a finger codpiece.
A condom is just a dick thimble
More like a finger chastity belt. They do make finger condoms though, I don’t remember what they’re for
I work in a restaurant, they are super useful for protecting a band aid on a new cut ( the condom keeps it water sealed ). We have to wash our hands so many times in a day, and having a loose bandaid that could come off in food is a huge thing to avoid. Plus washing dishes you may have to reach deep into the water where a glove wouldn’t keep your hand dry
It’s for those times when a full glove would be too formal. Casual Fridays at the doctor’s office, that sort of thing.
There are medical use ones, but also for sexual use (usually with some sort of extra like hardened dots).
I had a buddy in culinary school. He apparently used a ton of them, especially when practicing knife work.
Fingering?