@wanttoknow2,
The real answer is because Instagram is an extremely confusing complex mess no one bothers to explain or go over. Despite being logged in, I cannot even find my profile because the icon people say to use doesn't even exist for me. I also can't find a way to message anyone outright. The only way I am only able to message someone, is by replying to a message they already sent me.
pretty much all the features people say they use on Instagram, I cannot find. I'm not even sure how anyone is posting pictures or video.
Also when I launch Instagram, all I see is another person's video/picture and that's it. Until someone provides an actual instruction manual that teaches real information that helps, Instagram is pointless and doesn't do anything for anyone.
I manual containing all pictures that explain what every icon and interface is and how to navigate it, it's unusable and no one bothers to help.