It sounds like you could write a book on what not to do when thinking of adopting a kitten.
Rule # 1 Do not say you will Declaw the cat!(I saw your other thread)
Rule # 2 Don't bring all the kids in the neighborhood with you to view the kittens!

I think they were very rude! Is this a neighbor or someone you talked to on the phone first? In the future you should tell them only a couple of people allowed in at a time so the momcat and kittens don't get scared. I would have made all but two of them wait outside!