My two cents: I own one and bring it to family gatherings to record family. It’s small and non threatening and people don’t react defensively the same way they do with iPhones. I also take iPhone pictures and video but I like the video I get from the GoPro also.
I’ve also carried it with me when documenting something like going for a walk in my daily spot and going to mundane places. I usually do this before I move to a new place to capture those simple things I want to remember about the old one.
Again no one reacts the same way as if you’re walking towards them holding a phone in the record position and I like the video I get from it.
But I also used it on a hiking trip to big bend and it was nice to capture the hike passively and enjoy it without feeling the need to constantly stop and take pictures.