DC had a birthday party at the weekend which involved an out of town activity. The invitations asked parents to drop off / collect from our house and to provide a car seat. The children are in Yr 3 (7-8 years) and none of them are over 135cm. 2 of the 6 invitees arrived without a car seat 'because they don't use them anymore'.
I refused to take them
. Unfortunately we don't have spares and neither did any of the other guests' parents. Legally the driver (me / DH) is responsible for ensuring that children have a suitable seat and I wasn't prepared to flout the law (not least because I drive as part of my job so can't risk any offences). Parents were put out, kids (mine and theirs) were upset and I felt awful. But WIBU?