I am writing on behalf of a friend who was the sole caregiver for his son for his son's first ten years of life. He also brought up his ex-partner's other 4 children as their father. When she left him (5 years ago) she took the four with her but left the youngest with his dad. After ten years of occasional visits to his mum (3 hours drive away) she has now encouraged the youngest to join the rest of the family and my friend is left bereft. He does not know what to do with himself. He is a primary school teacher and has many concerns about the lifestyle and environment that his son will now be exposed to (there are a lot of drugs, older children using drugs and alcohol, truanting etc...). He is cautious of telling his son how much he misses him and has allowed his son to chose where to live because he feels that it is in his son's best interests to make his own decision (I disagree) but now that his son has decided to leave he doesn't know what to do or what his rights are. Can anyone advise on the best course of action? So far, the son has only been away for a week. My friend doesn't know whether he should try to force him to come home or not. Any advice..?