Not much difference.
As a kid your stuck in the back seat with your older brother bored, waiting to go three states away to see your aunt and uncle.
All you want see is the fast food places. I swear a two year old knows the fast food places by name. I remember my friends kids in the car.
Now Im grown and married and go on long trips, this time to see my parents who moved 250 miles away, just to see them. I sure wished I knew as growing up as a child that all I had to do was walk in the next room to see them unless I was at Shriners hospital where I was a lot, even so I took them for granted after I was home awhile. Now all grown up a trip to their house is only trip I want to take.
So now to keep bored in a car, is playing with my camera until the batteries die, read a book, crosstitch.
Why couldnt I thought of reading, crosstitch as a kid? What pictures I have now or art work.
Give you child a small camera and let them have fun taking pictures of the places on your trip.
Then get a web page like webshots.com and show the world your travel photos like I did. Every little town I went through from Sapulpa Oklahoma to Sayre Oklahoma I took a picture of.