7. Millenials seem to flock to urban areas where cars are less required
Other pieces I've read suggest the actual trend is more along the lines of college-educated millenials are somewhat trending toward a handful of particularly dense and favored urban neighborhoods in the US (SF, Manhattan/Brooklyn, Boston/Cambridge, Austin). What broader urbanization trends there are also include places like DFW, Phoenix, etc. that aren't really walkable or have good public transit.