Oh, I very much understand why his family never reported him missing. I have a cousin that I know will most likely end up the same way. Sometimes he's home, sometimes he's ... well, we never really know. He was on the west coast for awhile, and I think he's been home since last month. One day he'll just leave again and never return, and years later I'll hear about an unidentified young man in somewhere like Colorado or New Mexico and it will be him. When an adult decides to leave on their own volition, there's really not much their family can do.