The character's cultural ties are to his current nation of residence. While the character's ancestors may have come from another land, he has no strong emotional, physical or cultural ties to another country
Your people are nomads and rely heavily on livestock that can be moved as seasons and resources dictate. Most nomads use mounted or use beasts of burden to transport belongings. Nomads organise along family group lines and families stick together.
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.
Civil Strife! Conflict broke out during your youth causing social upheaval, your family was involved in the conflict (Work with your DM to detirmine your families involvement)
You find yourself in love with another, wither it is a fling or something more serious is up to you. (work with your DM to detirmine if it is ongoing or terminated)
In adulthood you have an encounter with an unusual person, who as far as you can tell, has no home or family. You offer to help in anyway you can. After accepting your hospitality the stranger vanishes leaving a note "Your kindness will be remembered".