My fiance and I have already booked our venue and thus far we have factored in our tentative head count what it would be with anyone we know that will be bringing their small child. Since we have children of our own, we didn't want someone to not be able to come because they couldn't bring their child. However, it would be nice to have less children there as possible so is there any way or suggestions on how to word an invitation stating that their child is invited, but it would be prefered that they did not attend?