You have aright to your feelings, and your comfort zone with your body.
You can also find you feel one way in the run up, then can completely change your mind. You might find that after a peaceful C/S, and lots of time with your LO when recovering that it's something you enjoy and never thought you would! Not saying this to try and convert you, because I was the other way around TBH.
I really thought I'd be so earth mother about the B/F and was really looking forward to proudly doing a great job. Not to mention sussing out my mum who never gave me a drop and this always bugged me...
When it came to it, I felt completely put upon and claustrophobic about it. This perhaps wasn't helped by PTSD from the birth and painful thrush, but the situation was what it was at the time, which is my point, you never know what will happen. I carried on anyway for months, knowing my IL's would be horrified if I didn't, (my MIL breastfed 7 kids, some till they were 3), and despite my mum constantly chanting "Oh put him on the bottle" every time she saw me wincing in pain. There were some lovely times, and in the end it was hard to say goodbye to it, but it was a long road, during which I did it to please some people, and prove a point to others, but I didn't consider myself really which is sad.
So it's good you are addressing your own feelings in advance, because those hormones that come with the milk can do all sorts of things to you!
If you can bear it, you could give it a go, in private, with no-one grabbing your boobs and showing you etc, then make an informed decision.