Hi, Vee, fortunately I've only had the kids' in the back seat!
IF there ever had been an adult, & they started with B/S driving, I'd pull over to side of road, stop car & tell them to get out, & walk!
The kids' were trained from their year dot, NOT to talk to me whilst I was driving. They did as they were told, thank goodness. Our journeys' were never more than 20 minutes'.