Then life would maybe be much more crowded. Being enabled to live in new places, they would make homes in mountains, treetops, cliff sides, and plenty of other places they were unable to live before.
And moving from one home to a new one would be a breeze, so long as you had the strength to keep aloft for a while.
Not to mention...WAY increased rates of skydiving, and WAY decreased rates of acrophobia (fear of heights). Maybe even reduced rates of suicides.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)