I can't believe all of you merrily judging parents whose teenagers are out wandering at night.
When DD was 13, we had almost 2 years of hell with her absconding from home, school, anywhere (There was a much older man and subsequent court case). The police regularly brought her home.
We involved SS, school, local agencies, safe space, ed psych, etc for help. They, like us could do nothing. I could not physically restrain DD, she would jump out of the windows when I went to the loo to escape. Or more usually, disappear from school mid day. The school can't keep them in either. We begged SS, etc for home assessments so they could point out where we were going wrong. They couldn't give us a single recommendation because we were doing nothing wrong.
For 2 years we battled, we tried everything, her behaviour was off the wall terrible. She just DID NOT CARE and WANTED TO BE WITH HER (very questionable) mates. Her family life was/is perfect. Mum and Dad who adore her, little brother who cried every night she was away, GP's who'se hearts were broken. It made no difference.
We moved schools, she absconded and was expelled from there. I arranged with original school to walk her into school, hand her over to her head of house and come in 15 mins early to collect her from school early, she left school at 10am and did not come back. We had her charged for stealing in order for her actions to have consequences. We removed every bit of IT including laptop from the house. We locked all our windows and doors and lived in a virtual prison but she got hold of a key somehow and escaped out of the garage. DH and I were out on the streets every night looking for her. Unfortunately we were not allowed to approach her abuser so we had to call the police. We were harassed by the abusers family and unable to do anything about it.
Very luckily for us she came through it and will be off to Uni next year. I couldn't love her or be more proud of her than I am today.
But it was hard, nearly broke our (naice middle-class affluent) family into pieces.
Sometimes it is not the parents fault. This was one of those times.