We've titled our 18+ YO kids' cars over to them, and gotten them their own insurance policies, to reduce our liability exposure. So we have three Geico policies in the household. Now we're thinking of switching from Geico, after 28 years, because of their present claim-handling procedures. Would there be any problem if we switch and the kids don't, or if we all switch to different carriers? Related question: If they drive one of our cars, or we drive one of their cars (we only do this on occasion), is the driver's policy or the vehicle owner's policy primary?