I grew up to far from town to really have a curfew for the most part. I did have to be in my yard by the time the street light my dad had put on one of the oaks came on though. When I was about 17 or 18 I was able to stay out later but never later than midnite and only if it was during the summer.
I'm 25 now and have been on my own for the last 7 years. When I go home I still check with my parents before going anywhere and ask them what time I need to be home.