Conversation so far:
Where was Daniel Boone born?
In 1731, the Boones moved to Exeter Township in the Oley Valley of Berks County, near the modern city of Reading, Pennsylvania. Daniel Boone was born there.
When did Daniel Boone's ancestors leave England?
Daniel Boone's father, Squire (his first name, not a title) Boone (1696–1765) emigrated in 1713, to join William Penn's colony of dissenters.
Where did Squire Boone emigrate to?
Daniel Boone's father, Squire Boone (1696–1765) emigrated from the small town of Bradninch, Devon (near Exeter) to Pennsylvania in 1713, to join William Penn's colony of dissenters.
Did Daniel Boone go to school?
Daniel Boone grew up on the frontier with little formal education, but gained deep knowledge of the woods. Boone received some tutoring from family members, though his spelling remained unorthodox.
Did Daniel Boone get in trouble as a youth?
In Daniel Boone's youth, his family became a source of controversy in the local Quaker community
What was the controversy involving the family of Daniel Boone?
In Daniel Boone's youth, his family became a source of controversy in the local Quaker community when two of the oldest children married outside the endogamous community.
Who did the oldest children of the Boone family marry to?
In 1742, Daniel Boone's parents were compelled to apologize publicly after their eldest child, Sarah, married John Willcockson, a worldling (non-Quaker).
Did Daniel Boone have a job in his youth?
Daniel Boone supported his growing family in these years as a market hunter and trapper, collecting pelts for the fur trade.

Question: When did he set out on his own?
Self-contained rewrite: When did Daniel Boone set out on his own?