Ok, maybe a slight exaggeration but I do feel that way.
I was talking to someone about joint birthday parties (for siblings whose birthdays are close together) recently. Our eldest children have recently started school. She asked if I was going to put my younger childs name on the invites that would go out to the school friends. I said of course not as they would be invited as the school friends guest, not the younger sibling.
My friend said I should as they might bring an extra present for the younger child. 
I laughed incredulously and she said that she did it last year and she will do it again next year. I laughed and said "that is so rude, I'm not doing that and neither would I take a present if I received an invite like this".
Its not just me is it? This is rude right?