Why are there so many scheduled c-sections?

Britt
I've just been seeing a lot of women scheduling c-sections & I was wondering what their reasons were? I'm a FTM aiming for a natural birth because I so badly want to feel EVERYTHING as odd as that seems. I would be devastated if my OB told me I had to have one. Are these elective because women do not want to experience the pain of a vaginal birth or are they medically necessary? It just seems like everyone's doing it!