DS1 is now 141cm and as I understand it tall enough not to need any kind of car seat. He is in a high backed booster now and DH said keeping him in it will give him the head protection he won't have without it.
Is he safer in the seat even though he is taller than the legal limit or is it like baby seats where they are not safe enough once the baby is heavier than the limit?
I am off for a hair wash but will be back later so TIA for any advice.