We have 5 (yes, I said five) cats, ranging from 13 years to under 4 months old. The oldest and the kitten have no trouble traveling with us, the other three will hide under the sofa (it is a jack-knife sofa bed and we leave it down so they can get in and out easier) while we are moving. While camping, they all find their favorite spots (usually the front dash. Occasionally, they will beg to go out, but as we don't have a good way to contain them, and none of them like a leash, they stay inside. Once or twice, one has escaped, but they usually don't go far (normally under the coach) and we are able to coax them back.
There are issues you'll have to figure out (i.e. litter box), but all in all, if you are going to be traveling for long periods, having them with you is better than not (JMHO).
Don
