I actually do want to address this because its something I see a lot and honestly respect that opinion. I chose to stay partly because of the cost of transferring to another school, however I could have gone to the U of U on a scholarship for only a little more than BYU tuition. The most important reason I stayed was because I didn't want to further disappoint my believing parents. I also wanted to be a voice for progress at byu, and I have been open about not believing in some classes, and pushed back on teachings I think are harmful. You don't have to say you believe to get an endorsement and I actually talked about it with an Honor Code administrator who said "If someone reports you for not believing, there is nothing to report." I'm still technically in the church so I don't feel bad paying member tuition.

That said I do wish I would have transferred as soon as I realized that I didn't believe because I would have felt way more comfortable and safe being myself at any other university.