DS's 6th b-day is next month. Because he is friends with almost all of the kids in his class, and he cant pass out invites in class unless they go to everyone we are inviting his whole class. Yikes thats a lot of kids, although I expect that a lot might not come. Since previous years its always been just family and friends, we've never worried much about RSVP's. This year however will be very important with the amount of people that are invited. I will need to know at least 4-5 days before his b-day how many people will be there. I normally send the invites 2 weeks before, but I think that I might want to do it a little earlier since I need them to RSVP so early. When should I send them? Is 3 weeks before the party good? If people dont RSVP, should I assume they are not coming? I dont know any of the parents. Also, I dont want parents to come and just drop off their kids. We are doing the party at the park and I dont want to be responsible for other people's kids. At this age do parents just drop off kids? How do I let them know they need to stay?