I had two, no intervention, natural births (second one at home) and I want the same for my third, currently OTW. I also breastfed both, exclusively for 6 months and then till they weaned naturally (around 2+). My reasons were very simple and very selfish: laziness and vanity.
I have been old enough with my first already (mid 30s) to want to make my life as easy as possible. I was and still am too lazy to fix bottles and carry them around when up and about. Boobs are, on the other hand in front of my chest and I have carried them around since I was born. I also assumed that trying to get maximum sleep and just doing everything my body was made for doing as an adult female would save my sanity. And it did - we co-slept, night feeds were minimum hassle. I had a lot of support to get the breastfeeding going because it’s a skill and someone needs to show you how to do this. I’m not in the UK and had excellent support from the midwives and HVs but I also demanded it and would not get fobbed off.
Same with c-section. I would obviously have one for medical reasons but would never consider a major operation just because. I have always had a flat belly, when I was younger it was without any effort, and with considerable maintenance (regular exercise) since I turned 40. I like it, I didn’t want to give myself a scar and a c-section overhang without a medical reason.
I had straightforward pregnancies, wasn’t overweight or obese, stayed very active and my deliveries were straightforward and I recovered quickly. If I were overweight, had sleep apnea, gestational diabetes, high blood pressure or any other pregnancy complication I would of course go for an elective c-section.
I also agree with PP who said that it’s the pregnancy that puts a lot of strain on the pelvic floor. I am 46 now and pregnant with DC3 and I have to actively work on keeping my pelvic floor healthy, which I have also been doing before getting pregnant because the muscles are affected by age-related sarcopenia as any other muscle. It has always been important for me to stay in shape while pregnant because I was already considered a geriatric mother with my first child and now I am considered an ancient anomaly by all health professionals with my spontaneous pregnancy at 46.
I think you have your reasons OP and it’s fine, I just wanted to give you my reasons for wanting completely different outcomes. I think very often women are “it’s fine as long as the baby is out and healthy” and forget their wellbeing in the process.