How would Tom have been different if he didn't have his education from Father Andrew?

Tom's education from Father Andrew is very important to the story. Father Andrew's stories inspire Tom to think about castles and princes. As a pauper, these imaginative tales are escapism for Tom. This sparks the desire to see a prince in real life, which leads Tom to the castle and sets the rest of the plot into motion.
The stories also inspire Tom to act and speak like a prince, which he does with the help of Father Andrew's lessons. Father Andrew teaches Tom and his sisters how to read, write, and speak properly. Tom adapts a more regal, educated attitude, which allows him to be mistaken for a real prince.
Those at court are fooled by the switch because Tom does not act like a pauper. Even when he tries to tell them he's not Edward, they don't believe him. Tom is able to speak Latin, and who would expect a pauper to know Latin? They don't realize Father Andrew is educating these poor children.
If Tom had not been educated by Father Andrew, the story would be different. Tom would not have the same mannerisms without his education, and it would be harder for him to pass as a prince. As it is, Tom has many flubs, so we can imagine how bad of a prince he would be without any education! Tom also might not have the same dreams without Father Andrew's stories, and so he might have never run into Edward.