If a company can make it happen something so amazing happens to you, you want to tell it to all your friends and you will tell it for a very long time. That is a very powerful marketingtool and a very powerful story.
Visiting a Disney park is of course already a big event for children. Having fun the entire day. Getting to meet your favourite cartoon characters.
When you are allowed to walk around the entire day in your favourite prince or princess costume. That will make it even more special.
But if then, somebody who is clearly from the park, comes to you to ask for an autograph, because he believes you are really a princess. Wow, that makes an impact.
Making a story you will tell for a very long time!