I'm wondering how I should handle the following situation:
My kids' birthday party is this weekend at a pizza place in town that has air-inflated jumping cages for little kids. We invited my Mom and Dad, my brother and his girlfriend, my nephew, 3 toddlers the kids go to daycare with and their parents, as well as the daycare lady, her husband and 2 teenage kids.
The way it looks now, all will be showing up; however, I am not aware as to how many parents will be there. The moms may come alone with their child or both parents may come - I don't know.
We are picking up the tab for the pizza but the drinks are not included with a pizza purchase. Also, this place has a endless salad bar that is $2.89 per person with the purchase of a pizza.
Right now we figure it's going to cost at least $70 for the pizza (that includes the kids getting a couple 1-topping pizzas, kids' pop and tokens to use in the arcade games there, as well as ice cream sundaes). Is it wrong for us to ask that the party goers get their own drinks as well as salad bar if they would like, so we don't carry all that expense ourselves?
EDITED: Had to correct the word "etiquette." I wrote this late last night while tired and it was driving me crazy seeing it incorrect.