Child at the rehearsal dinner?

pay for her babysitter. you don't want the child at the dinner, you find a babysitter. they had to travel with a 5 year old, which is difficult enough to begin with and its really rude to force them to find a babysitter in an area they're unfamiliar with. Surely theres a teenage girl in your family who can watch the kid. You don't want the child at the dinner, you find the babysitter. Simple as that.