Beware, they don't say anything about the CVT transmission until you sign the papers

I don't want you to hate your new car. It is pretty normal for all cars to have their transmission fluid changed at 30K mile intervals if you want them to last. CVT is no different in that regard. They are a light duty tranny and towing anything puts extra strain on them all, no exceptions. Your new car has a power train warranty to protect you for a couple years. If you still don't trust the CVT, trade it for a more conventional transmission. I think they were trying to give you some friendly advice but may have over stated their concern.

You can't overstate concern over the Nissan CVT.

I feel sorry for the manufacturer who has to cover the warranty.

I feel for the unsuspecting victims, er "customers".