I gave birth to my first child at home unassisted and the baby was breech. I would like you to know that I knew the baby was breech when I chose to birth unassisted. It was not a surprise breech. I realize that this was an unusual choice in that I had an "untried pelvis" and I am petite. The doctor noted on my records that my pelvic measurements where inadequate to boot(so this measurement is a guideline for what seems to be adequate not what is in fact adequate). As well, finding an attendant who has experience in vaginal breech birth is difficult and they generally are not hands off enough. My mother gave birth to a breech baby in a hospital in a rather traumatic birth experience that entailed a length recovery.
The attendant should never touch the baby or mother, especially during a breech delivery, unless the baby needs to be broken down or the head has not delivered and the infant is deprived of oxygen for too long. But, an attendant is a risk factor in that they often jump the gun and pull on the baby or intervene with damaging results. Most attendants can't keep their hands off, even well meaning midwives/doctors. And it is hard for an attendant to sit on their hands in a situation like this. The risk of birth injury during a breech birth is much greater and is as Dr. White said, " At the hands of their would be rescuer."
An attended breech birth carries risks, as does a c/s. I you are properly prepared, able to remain calm during the birth, the infant is full term, and the head measurements(if known by u/s) are normal, I would not do it any other way, but UC.
I do think that you should read up on breech birth. Do not let anyone touch you or the infant(unless absolutely necessary and make a calm decision here not a rash one fueled by fear), and know the time constraints for delivery of the head once the umbilicus is birthed(but again do not let this dictate hasty action without due cause). And this is a big one IMO and difficult since breech birth often is accompanied by unusually uncomfortable back labor(worse than my posterior baby even), do not push with your contractions(to the best of your ability). This allows the cervix time to fully dilate before the presenting part(butt or feet) enter the birth canal. I only gave one push to birth the baby's head and only after DH tried to gently apply pressure to my perineum to "unhook" the baby's head(the chin was resting on the perineal skin). If you are want you can pm me for more info. Also, I had my next child sitting breech up until just before I started pushing. The baby chose an uncomfortable time to turn with contractions coming so close, but again that is a possibility. I assumed after that(and midwife friends have said as much to me) that sitting upright in my pelvis is simply more comfortable for the baby.