Paying off your mortgage?

My friend Edith just told me she sent the final payment to pay off their mortgage. I cannot tell you how excited I am for my friends that they are debt free. Oh what a feeling that must be! She has received a lot of comments on her new facebook page about this, and one lady said she didn't think people stayed in their homes long enough to do that anymore. Kind of disturbing to me that people view debt as something they have to stay in forever.