I have birthing hips. I had 2 naturally. My second was 9lbs 3 oz. He was a big baby. He was posterior and got stuck turning, so transitions was >7.5 hours, total labor was more than 24 hours. I'm sure my doctor would've done a c-section for most women, but knew that I wasn't going there unless the baby's life was imminently at risk.

I shocked the doctor. At about 7 months, she recommended I write a birth plan. I instantly whipped out my 4 page long birth plan with very specific concerns, like no continuous monitoring, a heparin lock instead of a continual IV, a refusal to not drink water, and much more including the fact that I expected to deliver naturally and without any drugs.

There may be a few more women needing c-sections to deliver successfully, but I'm convinced most of the c-sections are for the convenience of mom or the doctor or just defensive medicine. The doctors are so scared to be sued that they do every intervention imaginable, so they can't be accused of not doing everything to save mom and the baby. In the US, that means they do so many interventions that we have about the worst outcomes for women and babies in the whole 1st world.