Do you know what I just realized, it's creepy having your own mother as your car. Imagine driving around shopping on a Sunday afternoon with your mother. Now, picture the same thing while riding on her back. It's just plain weird. I had trouble asking my mother to do my laundry when my washing machine broke. There's no way I can fathom taking her to work everyday and leaving her in the parking lot for eight hours. And what if Dave and Barb want to go to the drive-in and fool around a little in the back? What is the line between car and mother? Personally I would have a hard time saying things like "get in the car." or "shove it in the trunk." That's my mother your talking about. And I love my mother and all, but I don't need to see her everyday. But I do need my car everyday. What if I were to sit down with her, but instead of talking to her I just put the radio on real loud.
I could keep going, but I think you get the point.