Your people are considered barbarians and have a dynamic social structure, a highly educated society with a keen sense of propriety and law and order. In a sense, they are pre-Civilized, but not yet developed to the point where a central power is needed.
Destitute: These people are considered the dregs of society. They own no property, and may have no fixed home. Some perform no real work and are often unemployable. Others are in bond to a master and live at his whim.
Martial training: In adolescence you trained with the weapons of your people and learnt how to use them proficiently (work with your DM to determine details)
Approaching adulthood you experience wanderlust and decide to travel, roll 1d6 to detirmine years spent travelling and think about where your character might have gone. (work with your DM to determine details)