We have a high school senior about to go to college and three adult children (21,23,26). So you might think we'd downsize now, especially since 1/2 the house is "un-used" 90% of the time. For us, the issue is the other 10% of the time when everyone is home (summer vacations, holidays). We want a place where the entire family (6+) can visit comfortably. This will only increase when significant others and grand kids join the group.