In the official Disney theme park "character canon," there is a long-standing tradition that Disney Princesses do not acknowledge each other's existence when they are in their separate "worlds" or meet-and-greet locations. This policy is designed to preserve the unique story and timeline of each individual film; to a guest, Cinderella only exists in her story, and Belle in hers. However, this "rule" is not absolute and is frequently broken during parades, stage shows, and special events like "Mickey’s Once Upon a Christmastime Parade," where you will see princesses waving to one another or even dancing together. In the parks, if two princesses are meeting side-by-side (such as in Princess Fairytale Hall), they generally focus on their own guests, but they are increasingly allowed to engage in subtle, playful interactions if the situation warrants it. It is actually a "humanity rule" for guests that you should never skip one princess to go to another in a side-by-side meet; doing so is considered disrespectful to the performer. Ultimately, while they are marketed as a "Princess" group, Disney prioritizes the "story integrity" of each individual character during one-on-one interactions.