That’s just a stupid statement. Do you think the guide dog has a GPS to tell him/her where they are going? The guide dog doesn’t know where to go, the blind person tells them where to go. (left, right, etc) So the guide dog would just lead the blind person and the blind one would tell him the commands.
That was not the point I was making.
My point is there is no need for a LOOSE service dog in an airplane. The dog should be in a cage like my dog is while traveling on flights with me.