"vintage ITASCA 33' motor home", obviously used. It is quite possible that a previous owner has replaced the worn out sofa and chairs with residential style furniture. In a MH they should be secured for transport, sofa bolted to floor, some of the chairs that I've seen are free standing when parked and have brackets to secure them to the floor. They may not move under normal driving conditions, but during a panic maneuver, do you want a chair or anything launching from the living area to the cockpit area, I don't.
Ken