A curious lawn

These folks have a relatively large front yard. I guess it could be a NICE large front yard if they'd only realized that they planted half of their lawn with grass that lives in the summer, and half that lives in the winter. I can't imagine that they made a decision to plant winter grass on half of their lawn and regular grass on the rest- where's the logic in that? Sure, it doesn't look completely dead in the winter, but it looks goofy all year round. This picture is from early December - only a few short days ago. Some folk are just plain odd.