Just wanting to get everyone's opinion. Ds and dd are staying at my mums this weekend and she has just bought 2 booster seats (with backs) for use in her car because she can put them in and out quite easily herself.
Ds is almost 5 so he'll be right but dd doesn't turn 4 until September and the age that is recommended on the website is 4 yrs. She is quite a tall 3 yr old. 18kgs and on the 90th percentile for height. Her shoulders are at least 4 cm higher then the minimum shoulder height marker on the seat (she is in fact almost the same height as ds even though she is 13 months younger).
Mum thinks it's okay because she is the right height but I still feel a little nervous because she is so young.
What do you guys think?