I've done it before... I felt free.. Independent... But deep down I also felt true worry that something was going to happen to me. I didn't really do anything or go anywhere. I just walked and didn't stop.
These days it's hard because of all the predators just waiting to pounce. It costs a lot of money to live on your own, friends help but nobody wants to for long. The best thing is to bide your time, get educated and use the good fortune of a home till you have your wings so to speak.