Dd is still in a regular car seat (for up to 36lb) but her head is just reaching the top of it. She's only 29lb and would probably take a couple of years to reach the maximum weight. She will be 3 at the end of March. Would it be safe to put her in a booster seat with a back with an adult seat belt? She's only about 90cm in height so will she be tall enough? If not, when should we take her out of this car seat i.e. how far above the top of the car seat can her head be?
Ds is getting too big for his car seat which is part of a travel system. He is 6 months old and about 21lb. He can hold his head up well but can't sit unaided. We have a bigger car seat which dd currently uses if going in dh's car. It is designed to be rear facing but we've tried it and it really doesn't look safe that way round. Is it safe to have it forward facing?