What will happen if I dedicate each outlet to its own breaker in an RV?? I thought I was doing it the right way and may have cost myself a lot of extra money and put my safety on the line. I already have plastic and insulation up... do I have to take down and ponytail my outlets?
If each outlet is on its own breaker then you have probably used more cable compared to having two or more on a circuit, as well as paid for a few extra breakers.
What you have not done is compromised your safety.
This way if any one outlet "sees" or detects a fault then the other outlets will continue - unless the inverter shuts down.
No, you don't have to remove and vapor barriers or insulation. There's nothing wrong with tying each outlet to it's own breaker. It actually makes sense because because there's not an abundance of outlets in an rv and it's easy to overload them and then you loose all on the one breaker. It probably didn't cost that much because you already had to buy the wire and it comes in a box or reel and the breakers are pretty cheap. Just don't use the backstabs on the outlets. Terminate the wires on the screw terminals. Another advantage is that if one outlet acts up, it's easy to troubleshoot and you don't lose the whole string.