I dont think that is rude at all...I must be strange! lol

If your DD was invited to 3 separate parties you would still have to buy 3 presents...you would also be spending your entire weekend at kids birthday's what a PITA!

It will cost you all of about 5 dollars and and hour of time to make some sausage roles and whack them on a plate...not hard or expensive...or some fairy cakes....

Sorry, I think you are overreacting.
I"m going with the minority here? I have to say I don't think I'd find it that much of an effort to grab a box of cheezels or a plate of fairy bread to send along. The presents would be bought anyway regardless of whether she was attending one party or three separate parties, so it really it saves you from making 3 plates of food if they had been separate parties then ? Maybe a little overreaction I would say. That's just my opinion though?