Without international renters, there'd be (almost) no RV rentals!
Not only standard practice.... it's about 55% of the total market! International visitors to the USA actually constitute the majority of non-commercial RV renters in the USA.
Mike, have you personal experience that you'd be able to share on this issue? We've never even heard of the kinds of problems you've alluded to and, in fact, we know of hundreds of successful RV rentals made by international visitors over the last couple of decades.
Mark