fwiw, i did have an unassisted birth at home and didn't make myself any food, or have to do anything but enjoy the process of labor and birth. after the birth, i didn't do any cleaning up either. i was supported, loved, and well cared for. so, it is possible to have a UC and experience those "hospital benefits" right there at home.
likewise, i did birth my first (and currently only) baby UC. i chose it for a variety of reasons--and i wouldn't necessarily say that trusting my body was one of them per se. it just seemed like the safest, and deeply right, method for us. that, of course, simplifies it, but it is true.
i believe that i can trust my body to run a marathon or climb mt everest if i prepare for it. preparing for it may be physical, mental, or spiritual. could be all of those things. and there is risk inherent.
i don't think i could do the lead in swan lake, not because my body isn't inherently capable, but because i do not have the requisite training.
but they are good examples of what we are willing to do and not willing to do, and how far we understand our own body's capacities. I think it's an important *very important* part of how, where, and with whom we choose to birth.
it requires us to have self-knowledge. that self knowledge will not lead astray. Choosing a hospital based on self knowledge is perfect. choosing a UC based on self knowledge is perfect. it's the foundation of good decision making, even with mountain climbing and marathons.