I’ve reflected on the fact that some makers on YouTube wear gloves and wondered if this is for privacy reasons. I see globes being worn even when they’re not obviously doing anything that risk getting their fingers dirty.
Possibly to hide damaged cuticles, dirty fingernails, or something else unsightly. Comments will harp on just about any flaw. Ben Heck addressed comments about his fingers' condition, but he just offers some sarcasm about them instead of hiding it. Some might resort to gloves.
That could just be for continuity - so if they shoot the video out of order, you don't get the gloves appearing and disappearing and reappearing between scenes.