Why are "chat" and "emotes" something only found in MMOs? Because NPCs are not people? They are in an RPG.
I wish I could type replies to some of the things NPCs say. I wish I could applaud after a Bard performs in a tavern. I wish I could dance and drink and carouse.
I guess since single player games have no other players in them, developers think this is a waste of resources? They just do not see NPCs as our door into the worlds they create.
What do you think? Bad idea? Good idea? Do you care?