I am not a dog person. But I know lots of people who are and they commonly say the thing they love about dogs (as compared to children, for example) is how their love is unconditional and they don’t speak or share their opinions with you like people do.
That seemed a bit sad to me. It seems like saying having a dog is mostly good because it can’t talk or share its opinions (and as a sentient animal it surely has some) but if it could, it would become annoying and undesirable.
Would you still have a dog if it spoke its mind?