The point I made was that children are much safer when protected by seat belts. This is much easier to do when you keep them in a tow vehicle. When in an RV, there is a tendency to allow them to play in the open areas, etc., but this is extremely dangerous because if they are not safely held in place and a collision occurs, they can become flying missiles that can kill them as well as any other people they may strike. A vehicle traveling at 60 mph may stop suddenly, but anything that is "loose" within that vehicle, continues forward at that rate of speed, including children. For this reason, traveling by a pull trailer or fifth wheel that you are towing behind a car or truck is the safest way to travel with children, as long as you keep them in seat belts while you are moving.