Please take a moment to watch this video - it contains an important message about the use of booster seats with the normal car seat belts vs 5 point harnesses for as long as possible for a child.
WARNING - THIS VIDEO IS VERY SAD - though not gorey. It is about the death of a young boy in a car accident.
If as I do, you believe this message is important to share with others then please email your friends who have children and let them know about it too.