I made a conscious decision to move 40 miles away from my family's home once I had saved enough money to be able to rent an apartment, buy furniture, and not have to eat soap three meals a day. I loved my family, but it was very important for me to have privacy, and in the town where they lived (and where I lived with them after college while working on my master's degree), I would have had NO privacy at all.
Also, the arts scene was a thousand times more variable here than in that town.