Unless there isn't some kind of restriction to use it, it makes absolutely no sense to hold on to it to even begin with. You could take the whole camp out of the game and let your party regenerate health and resources at the end of each fight automatically and it wouldn't change the current gameplay one bit. That's how meaningless the current resting system is. Party conversations could happen outside of camp just as well. I can only assume that it's still a big work in progress and not even nearly there where the dev's want it to be, or otherwise they would have implemented the whole system without any gameplay mechanical justification to even be there in the first place.
I remember earlier games where they used to do it this way; where you heal outside of battle. Not sure of the games off the top of my head though.
