<span>I had this same question and this was the correct answer: </span><span>Thee, Thou, Thy and Thine (You and Your) </span>It’s a common myth that Shakespeare never uses the words “you” and “your” – actually, these words are commonplace in his plays. However, he also uses the words “thee / thou” instead of “you” and the word “thy / thine” instead of “your”. Sometimes he uses both “you” and “thy” in the same speech. This is simply because in Tudor England the older generation said “thee” and “thy” to denote a status or reverence for authority. Therefore when addressing a king the older “thou” and “thy” would be used, leaving the newer “you” and “your” for more informal occasions. Soon after Shakespeare’s lifetime, the older form passed away!
The reader might become more attached to Buck, and if it was told from the trainer's point of view, it might change the reader's opinon on Buck, and make it more on the trainer's side.