Let us think about the president of the United States for a moment shall we? Every move he makes is analyzed, scrutinized, recorded, and fed to the public on a platter. All day every day he's on the clock. He doesn't get a day off from work. Even the days that are technically days off really aren't. He can't go to a strip club and hang out with the boys.

Yuna was raised as a religious figurehead for the world of Spira. Throughout FFX she was always on the job. People expected to see a well-mannered, respectable girl who upheld the beliefs of Yevon in every part of her life. She fulfilled her role with grace, putting the needs of Spira above her own. Even after the Calm, she continued to put the people of Spira before herself.

I think most of us act differently at work than we do when we are with friends. That is unless you have a really laid back job. If you have a formal job you have to dress a certain way, act a certain way, etc. When you are with your friends you can just have fun.

When Yuna finally decided to resign her position as political/religious figure is it any surprise that her fun side finally came out? Not to me. She was sheltered from opportunities for so long it was like a kid in a candy store. I can wear clothes like THAT? You sure can!

Heck, people I work with are often surprised when they see the "real me". At work I'm super professional, quite, reserved, and filter everything I say. When I hang out with friends I am more outgoing, do impressions of stereotypes, can turn any phrase into a dirty reference, etc. It's like a totally different person.

“We all wear masks, and the time comes when we cannot remove them without removing some of our own skin.”
― Andre Berthiaume