Monsters raid forces the character's family from their cavern homes, and the monsters still occupy the caverns to the present day. (work with your DM to determine details)
Your people are developing and improving themselves technologically, socially and morally. Usually, this culture is on its way up from Barbarism, rulers may favor some type of popular representation, and the people have much faith for the future.
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.
When you become an adult you learn to used a weapon (of your choice) appropriate for your culture and social standing. (work with your DM to determine details)