Definitely people care about blue vs green bubbles. Have you ever tried to send videos back and forth between the two? It looks like it was shot on my old Nokia flip phone in either direction. Plus no "typing" bubble, texts seem to take longer to arrive, group chats are degraded if even one green bubble is included, etc. It sounds like Android has finally caught up with RCS, but iMessage was one of my favorite features when I switched years ago.