Have you looked into the concept of "theory of mind" in developmental psychology and the relevant experiments on children e.g. the "false belief task"? IMHO th

Have you looked into the concept of "theory of mind" in developmental psychology and the relevant experiments on children e.g. the "false belief task"? IMHO that is essential to the whole concept of questions; questions only make sense if you have an internal model of someone else's mind that contains different knowledge than you have. Animals which do not have this capability (I'm not well informed on this, but it looks possible that primates don't, e.g. https://users.ox.ac.uk/~ascch/Celia's%20pdfs/1998theoryofmind.pdf) https://users.ox.ac.uk/~ascch/Celia's%20pdfs/1998theoryofmin... would be fundamentally limited below the level of very young kids; and perhaps it's not a coincidence that the theory of mind seems to form at about the same age when kids have seem to have an excess of "why" questions about everything.