I coined a new term that I hope will catch on. "Spear Kids" -- the opposite of the "Boomerang Kids" that end up back living with their parents and depending on them financially. Spear kids achieve financial independence at about the same time that the boomerang kids are moving out of their parents' houses.
I explained it in more detail here:
http://www.awesomesecrets.com/2014/09/07/spear-kids/