Curfew? That assumes your parents let you out of the house at all!! Unless I had a really good excuse, like church youth group or something like that, I wasn't allowed out of the house after dark. My parents were so overly strict that I still shudder to think about it....some 30 years later. At age 16, I can't imagine myself being allowed to be out of the house past 9 PM. It wasn't until I escaped to college that I discovered that life exists after the 10 o'clock news is over. So yeah, like you, I really enjoyed my new found freedom in college.
If I was a parent nowadays (fortunately, I'm not), I'd let my kids stay out to maybe 10 PM at age 16, progressing to midnight by age 18. I'd probably tend to let a son stay out later than a daughter though.