we have'nt realy had to deal with the curfew issue yet, but for us it will definatly be situational. it will depend on where she's going, with whom (driving status) and to some extent the weather. we can get some insane driving conditions where we live, and given that we live in an area where cell phone coverage can, from street to street be spotty at best, we would'nt be agreeable to her being out terribly late if the visability was such we could'nt find her if the car broke down (and there's one rule that dh and i have with each other, that we would insist the kids follow-as a courtesy to the person who is sitting at home waiting for you, you let them know your travel plans and what route you will be using, that way if you don't show and your cell is not picking up the person at home has an idea of what roads/locations to start looking for you in case of a breakdown or accident).