1. Your friends never ask to borrow your car.
  2. People are less likely to steal your car.
  3. Younger people might think it's pointless, but they're just jealous.
  4. You yourself can borrow or steal any car!
  5. In the event of a zombie apocalypse you have a skill other survivors might find handy.
  6. You have more responsibilities in the car but it makes you a better more aware driver.
  7. I've been told women find it attractive. (Don't crush my dreams!) It's also a very attractive skill for a girl to have.
  8. Idling is annoying.
  9. It gives your lonely left foot a feeling of importance.