I remember when I was growing up and my parents owned a huge Chevy van (similar to the one pictured here). My two sisters and I would have the entire back all to ourselves.My dad would lay down the back bench and mom would make it into a bed. They'd have our little television set up so we could watch movies (yes this was back in the late 80's). We had a table that sat between the bench and the captain chairs. I dont think seatbelts were ever really enforced (by my parents).
I can only imagine how hard it must be for these little bodies to be barricaded down for long amounts of time.