My 16 year old daughter has asked to go to Leeds for 2 days with 5 of her friends. We live in Liverpool so they would get the train to Leeds, which is about 1hr30. She is proposing to stay in the student flat of one of her friend's sisters (the flat is empty). My immediate answer was no, as she is still very young but am I being unreasonable? She has had a job for 18 months now so could pay for it herself and I must admit, she is way more mature than I was at her age. I just worry about her being in a city that she doesn't know well without an adult. Am I making the right decision if I don't allow her to go?