Multi Family Yard Sale

My neighbors have all lived here in the same houses for years. There is just one house on the block that is rented, and we never see those people much. So all the rest of us have been here for at least 6 years. So why is it that we never have a multi family yard sale? All the other established neighborhoods seem to be more friendly about things like that. My girlfriend, KeeKee, just had a big yard sale and everyone on her street put things out to sell. It was like a big block party but they all made a little money and got rid of stuff they don’t want anymore.

What’s wrong with my neighbors?