How about people here? When did you realize people are real?
When I moved out for the first real time. I realised my parents were whole human beings in their own right, and by extension every other person in the world.
I know that might make me sound stupid as I was an adult when I had that realisation. I mean it as the first time I really understood and internalised that idea. Everyone is on their own journey. Also not disputing me being a dumbass, there is plenty I do not know.