Travel Trailer electrical, - Inverter placement/hookup

Is there any reason I can't just take the wire coming off the breaker for the plugs and it's negative of course, and hook them to my inverter and skip what it seems a lot of people have done?

As I said, I am just looking to power the plugs in the trailer.

I have to look to see if I have the wiring diagram for it and see if the plugs are isolated from everything else or part of another circuit.