Isn't it just how speech works? There are examples of this probably in any culture. It would actually be odd to respond to the question as asked instead of the

Isn't it just how speech works? There are examples of this probably in any culture. It would actually be odd to respond to the question as asked instead of the expected ACK; you'd get something like this classic: https://www.youtube.com/watch?v=mhEYXcCB1Qw https://www.youtube.com/watch?v=mhEYXcCB1Qw