I've twice seen my son arrive at his nursery after a day out with his pals, in what I consider to be, unsafe positions in the car.
The first time he was in the middle of his two mates who were in car seats whilst he had a lap belt (which are not even safe for adults).
The second time, he was behind the driver, on a booster seat and on top of two cushions to raise him up.
Both times I mentioned this to staff (once the manager and then to her second in command)but I continue to be concerned, firstly, for the safety of my son, ie. how do I know they won't do it again? And secondly for the safety of the other toddlers.
I think they continue to use the booster seat as it's alongside the 3 carseats which are stored in the nursery.
I am going to mention it again but wondered if you could back me up with any research or info you may have?