In addition to the other accurate responses, there's also the notion that these days, most people are not buying their "forever home" that they will "just live

In addition to the other accurate responses, there's also the notion that these days, most people are not buying their "forever home" that they will "just live in." They are buying a ($1m+) "starter home" and then hoping to ladder their way up into what might be their "forever home." That involves selling at some point.