For years, the conventional wisdom has been that millennials prefer urban living and the culture and excitement of the big, dense cities, want to be flexible and avoid owning a home, and if given a choice, would rent an apartment in a hip downtown development in a heartbeat. But as millennials age, and more marry and consider starting families, the numbers tell a different story. I spoke to experts across the industry to get an up-to-date view of housing trends among young adults.