This is what gets the story going. It shows the normal world of the protagonist followed by something that changes that world.
Goal: Philip wants to go riding
Motivation: because he wants to get away from his family for a bit, because he’s an introvert
Conflict: His cousin wants to go along and Philip doesn’t want him to (conflict grows out of motivation)
Disaster: Yes he goes riding, but his cousin tells him he’s less than a man (in a manly world)
Reaction – (next scene) Philip is riding in a carriage on his way to school. His cousin’s words annoy him.
Dilemma – He should continue on and ignore his cousin’s words. If he does – does that prove his cousin’s point?
Decision – He decides to ditch his escort and travel to school alone
Back to motivation… Philip is an introvert and he’s going to be King someday and will need to at least act like an extrovert. Before then, he’s going to rule his own little section of the country – so he’ll need to learn to deal with people. His cousin’s words make him want to not deal with people at all, and they make him burn to prove that he is capable of leading his own life. Contradictory? Perhaps. Philip wants to be a good leader. Philip thinks he is a good leader – better than his brute cousin at least. Smarter.
Transformation. Philip is going to transform from an introverted, overly protected momma’s boy to an introvert who learns how to successfully interact with large groups of people and a leader who can take care of himself and others.
Up until Doorway #1, Philip goes about his transformation under the wrong assumption; that he can go it alone and succeed. Yes he learns things, but he fails. He needs to resist the adventure. After Doorway #1, he has a greater failure and a mirror moment, where he realizes his assumption is faulty and has to come up with a new view of the world. Then he does something nice in Pet the Dog, and Doorway #2 he commits fully to his change (and the adventure whatever that’s going to be).