of course family's kids are invited, but when inviting friends/co-workers, is it ok to only invite SOME? I am close to a few co-workers' kids, and some who I know would have a hard time finding a sitter but I really want them there. There are also people whose kids I don't know all too well and am certain would have a hard time at a kids' table (something we are set on as a given).
So what's the lesser of two evils in this case? Not inviting someone at all if you expect them to be miffed about seeing other non-family kids? I can think of one in particular who is sort of "weird" as a mom, for lack of a better term. She would make an issue out of everything related to her kid. Strangely, pretty cool on her own.