I feel this depends on some other factors, as yes im not a big selfie fan, unless in a family photo so kind of needed, but the people you encounter on your journey who may live there or be traveling themselves add to the journey of discover as well so are a big part of the photos.
Just my view on it :)
I'm not against adding the people you encounter on your journey. What I'm really against are those endless selfies that don't really add value to the blog. Like I can understand if one will add one selfie as proof of their visit to the place, but adding 10 selfies of the same angle at the same place is just too much. And I see a lot of people doing it.
I also add photos of myself in my blogs. At least smile if you're adding selfies. 😆
of course, they are! And in the end, we write travel blogs also for ourselves to keep our memory of the travel, so that's at least why I also add pictures of myself and my travel buddies. But I agree that the focus of the travel should be the place itself ;)