when should i move

A friend of mine was told by her parents that she needs to move out soon. Shes 20. This kind of made me nervous because im 19 and live with my parents. I attend a local university as a full time student and I work full time. However, I cant afford to move out because my college bill is $700 a month. What age should start looking to move out?

Edit: My parents dont care when I move out, if anything my mom doesnt want me to leave.