Because it's literally not needed. If I want to see endless photos of your baby, I'll ask to follow your private Instagram. If I want to message you, I'll eithe

Because it's literally not needed. If I want to see endless photos of your baby, I'll ask to follow your private Instagram. If I want to message you, I'll either text you or IG message you. Hell, if I want to group message I'll text or IG group message. If I want to share photos I have iCloud shared albums. Besides that I live my life out in the real world. I don't need some weird monolithic Jurassic era social network to maintain relationships with people. So yeah, tastes change. The basic functionality of an old Facebook has been atomized and woven into the fabric of my regular phone usage.