Thank you all for the great responses. Like I said in the earlier posts, I understand the safety aspects and do intend to have the kids buckled up while siting. But like mentioned above, if they want to lay in the bed in back and watch a movie while we travel, this sounds good to me. I will be less distracted and thus able to pay better attention to the road. I really was just curious as to what other people do. Believe me I do not plan on letting my precious kids ride down the road while sitting up front or on the dash (I saw this once while on a trip). I will use common sense, but do plan to allow them some freedom to get up and move as the wish. I will not allow them to play kick ball in the isle or anything like that, but will allow them to get a drink from the fridge, move from the bed room to the dinette, etc.
Great comments by all and I do appreciate them. Please keep them coming.