Because some people are dim and they don't think anything bad will happen to them but if it does they will expect other people to fix it.Good Lord- I sound like a National Party supporter- I'm not- really I'm not.
Some people never learn until it's too late!
Perhaps the issue was child control? They could not get a willful child to sit in the seat? ... just a guess. Still bad. That child will grow up to cause accidents.