Try not to think too much about it now. Deal with it when the time comes. They cannot do anything you dont want once you are in labour and you say no, speically if you dont have any pre-exisitng conditions they need to keep on top of.
Monitoring could be as simple as checking BP or baby movements every 15mins, checking your temp, and I should imagine if youa re in acitve labour, and moving around, they aren't going to pester you too much.

I know once I had my epi, and I was confined to my bed, I had constant monitoring. I had an auto BP cuff which worked about every 15mins, I had a thing over my fingertip, I also had a CTG on my belly (until that stopped working well) and they checked everything on my chart every 15mins or so.

Despite what people think, I really dont believe they want to rush you in for a c/s if things aren't exactly textbook. I do firmly feel that all your medical providers know they importance of vaginal birth over intervention, and at the end of the day they will go for that before other options.
I dont know too many people who have had c/s for inappropriate reasons. Generally they come about from long labours not prgressing, distress in mums or bubs or for other medical problems. They will not whip you off to a theatre if they dont get 15min monitoring right.

So - ignore what they have told you, focus on postive birhting affirmations, and go for it!