What do you think about this?
Yes we do the same thing.
“Clearly," said Arthur,"you're an idiot- but you're our kind of idiot. Come on.” ― Markus Zusak, The Book Thief
To me, a curfew is someting you implement if there is a problem. If the child can set reasonable limits for him/herself, then they are not needed.
Yes you assumed right .. post HS age. I'm trying to remember if I had a curfew as well; I do remember having a 1030-ish rule for being in unless a different time was decided upon (I guess by def, that is a curfew). As long as they lived at home the family agreement was that common courtesy dictated to let me know a ballpark time to expect to hear the door. 3 out of 4 of them were excellent about it and the one who tested our patience gave us a few grey hairs. We needed to be exactly specific with him no matter his age and dh did end up getting him out of some tight squeezes over the years. He was also known for the most creative excuses for why he was late.
i'm waiting for a problem to arise but so far, we've been very lucky.