We made the choice to limit children invited to immediate family as our friends and coworkers all have multiple children and we would've blown our budget and venue max quickly. We made sure to clearly address the outer and inner envelopes with the names of those invited but people are RSVPing and adding children. Do we wait and see if more people do this and then make phone calls? I do feel bad because our response cards include a line for children's entrée for 12 and under, but we needed to include it because some out of town family we don't have other contact information on have children around the cut off age to and adult entrée.