I believe the GP meant that these people do not intend to stay in the same home beyond the life of the mortgage. So yes, they pay off the original loan when the

I believe the GP meant that these people do not intend to stay in the same home beyond the life of the mortgage. So yes, they pay off the original loan when they sell, but they immediately turn around and take out another. I don't agree with the GP on much of anything they said there, but that's my take on it. Maybe they meant interest only loans? I don't know why anyone would take out an interest only loan for a primary residence they intend to live in for some time, but I'm guessing here.