Just want to check what you guys think of this. My dd (15) thinks it's perfectly fine for friends who aren't staying for dinner (either we don't have enough or they're having dinner at home) to sit in our lounge or even at the table with us whilst we eat. Now, to me this is the height of bad manners and this would NEVER have happened when I was a kid. My dd says "nowadays people don't worry about this."
Am I alone in this? To clarify I am not about to change my rules and non-dinner guests will have to leave.