He's got a very long road ahead of him. Let's hope his years left on this earth will be enough for the youngest to reach adulthood. Uprooting a family is difficult. I had to do it myself, but also provides the best scenario to introduce them to a new, more adult way of living. If the man-children were left in the same environment, they would not be able to change out of comfort of familiarity. Since they'll now be in a totally new environment, a completely new way of life can be presented to them and they should have an easier time adapting. He needs to set the ground rules in stone as these boys need structure, not pampering them in a cloistered world of denial and self pity. He can be their friend later. Right now he has to mentor them into adults. They will undoubtedly complain about everything they had to give up but also will not even notice what he had to. If he needs help, I'm sure most of us are willing to give free advice.