This is true, but when there are amenities for families (playgrounds, green space in general, and schools) this is less likely happen, especially given that in

This is true, but when there are amenities for families (playgrounds, green space in general, and schools) this is less likely happen, especially given that in Pittsburgh, at least, you can live in the city, within 5 miles of downtown, in a walkable neighborhood, for less money.