This is probably a stupid question but do I fasten the seat belt on a high backed booster when the child isn't in it?
DD has just reached 18kg so I've converted her car seat to group 2 to use with seat belt & removed the harness.
I've followed all the instructions & watched a YouTube video but none of them actually mentioned when the child isn't in the seat.
Do I wait until she gets out then fasten then seat belt again?? Seems strange but presumably if I didn't then it would move about??