I don't have carpet in my house or camper. I can't imagine having it on the camper, that would be awful. It's so much easier to just walk in without having to take off your shoes every time and then just sweep up the dirt if you need to.
The house I live in had the same carpet in it for 40 years. My god was that stuff awful when we hauled it out. It had so much dirt in it that even fairly small rolls of it were heavy to carry. Under the carpet was hardwood floors. I had them redone and I'm sooooo much happier in this house now. It made the 65 year old stinky old house into a much better living space.