. there are lots of reasons people who don't like being in the family are there.
that is really none of your business. maybe he's underage, maybe he doesn't have enuf money to take a plane to some place he'd like to go, maybe he's in love with someoone in the family, or married, and not into a divorce or leaving a kid at this moment, or a court battle, etc. maybe he has no education and worries about getting a shitty first job, etc. so food and board in the family is an ok compromise. maybe his nationality is from a 3rd world country, and he would need to first work out a good visa for a first world place before going, or vice versa, sometimes it's just easier to stay in the family than leave, at least for a while. the last 3 years i was in TFI, i was so unhappy in it, but for many reasons didn't have the courage to leave until i found someone likeminded and we left together and lived together for a while, supporting each other.
, it is really hard to offer help or ideas without any details of exactly what you want to do and what you're thinking. i'm sure there are ideas and suggestions to offer you, and certainly if you're planning on leaving the family, a lot of us would be happy to help you how we can, especially with moral support, and ideas, but you're not making it easy to help you because you don't say what you want exactly. and i for one don't read minds.