I was shocked to learn that the average homeowner in the US lives in their house for only 7 years.

I wonder how much of this is a question of what average is being used. It's the old median vs mean problem.

Elon Musk and a hundred homeless people are in a room. By the mean, the average person in that room is a billionaire. By the median, the average person is homeless.

I'm really curious whether that 7 year average figure is based on the median or mean. Because I could see it being really skewed by young people in their twenties that move around a lot.