I think this might go back to our reading habits on paper. I've noticed that many of my friends who use their fingers to guide their reading on paper like to hi

I think this might go back to our reading habits on paper. I've noticed that many of my friends who use their fingers to guide their reading on paper like to highlight text or move their cursor to mark their position when web browsing. I've never done that though, so I never felt the need to do so on a computer either.